Document 6533763
Transcription
Document 6533763
A partnership of: Texas Institute for Measurement, Evaluation, and Statistics at the University of Houston; California State University, Long Beach; Center for Applied Linguistics; Harvard University; University of California, Berkeley; and Vaughn Gross Center at the University of Texas at Austin. QuEST: Quality English and Science Teaching Diane August Annie Duguay Center for Applied Linguistics Copyright © 2011 Center for Applied Linguistics QuEST: Quality English and Science Teaching Branum- University of Houston: David Francis, Lee Branum-Martin, Elsa Hagan, Coleen Carlson, Chris Bar Center for Applied Linguistics: Annie Duguay, Jennifer Powell, Aileen Bach, Natalia Jacobsen, Lindsey Massoud, Kat Kramer QuEST is a major strand of the National Research and Development Center on ELLs-CREATE. Overview of the Presentation •Overview –Study Goals –Research findings –Study context and results –Partner work #1 •Instructional methods –Dual objectives –Language and literacy development –Partner work #2 –Scaffolding content –Partner work #3 3 Study Goals • Develop, implement, and assess the effectiveness of an instructional approach and professional development designed to build the science knowledge and academic language of middle school English-language learners and their English proficient peers 4 Research Findings • NAEP (2005) scores at 8th grade indicate – English proficient students scored 151 scale score points – ELLs scored 107 scale score points – Only ELLs proficient enough in English to take the assessment were included • Review of all pre-experimental and experimental studies indicate effective interventions for ELLs – Build on effective L1 science research – Take into account students’ language backgrounds Research Findings • Studies that examine role of language proficiency in science learning consistently find – Limited English proficiency inhibits L2 learners science achievement in English – Students can bootstrap on L1 knowledge and skills • Studies that examine communication and interaction patterns among culturally different subgroups of students engaged in science activities find – Differences and similarities among cultures in interaction patterns Study Context • Study implemented in high-poverty urban schools in Texas with large numbers of ELLs • Involved sixth grade and seventh grade science teachers in middle schools – Professional development – Mentoring • Informal structured observations • Debriefings Study Findings • QuEST improves quality of teacher’s science instruction and raises student performance on curriculum-based measures of vocabulary and science. – Alterations made to accommodate ELLS • Substantial variability across teachers in rated quality of instruction – Highlights the importance of professional development and mentoring • Important contribution to the field – Only published experimental study where English is medium of science instruction to show significant treatment effects for both ELLs and English proficient students 8 Publication The Impact of an Instructional Intervention on the Science and Language Learning of Middle Grade English Language Learners Diane August Center for Applied Linguistics, Washington, DC, USA Lee Branum-Martin, Elsa Cardenas-Hagan, and David J. Francis Texas Institute for Measurement, Evaluation, and Statistics, University of Houston, Houston, Texas, USA Journal of Research on Educational Effectiveness, 2: 345–376, 2009 Partner Work #1 • Choose a partner. • Introduce yourself. • Discuss: – What is the ELL population of your school? – What are the language and literacy needs of ELLs in your content classes? – What methods do you currently use to develop language and literacy in content area classrooms? – What would you like to learn about developing language and literacy in content area classrooms? 10 Instructional Methods •Dual objectives –Language –Science •Language and literacy development •Scaffolding content 11 Dual Objectives • In science, we will learn: – to identify and explain phototropism and gravitropism in plants • To develop our language skills, we will learn: – to write a paragraph describing conclusions related to the lab – to spell irregular plurals for science content terms – To acquire general academic and discipline specific vocabulary: affect, record, phototropism, gravitropism, gravity 12 Dual Objectives Students, as you enter the classroom… • Go to the poster. • Read each objective. • Use a marker to rate your knowledge of each objective on a scale of 1-4. • Begin the review questions. 13 Plants Language and Literacy Development • Direct instruction of individual words – High frequency general academic and discipline specific • Word learning strategies – Nominalization – Irregular plurals – Cognates • Immersion in language rich environments – Shared interactive reading and a lot of teacher and student talk surrounding activities – Incorporating L1 language and culture 14 Academic and Discipline-specific Vocabulary • Vocabulary – General academic vocabulary • Highest frequency words indicated by the Academic Word List • Procedural words that appear frequently on grade-level assessments – Discipline-specific vocabulary • Key to meeting state and district science standards 15 Direct Instruction of Individual Words Life Science Word Cards Lesson 6.1 – ecosystem ecosystem 1. Read the word: ecosystem Teacher Talk 2. Pencils up if you know the meaning of the word ecosystem. Pencils to the side if you have heard the word ecosystem but are not sure what it really is. Pencils down if you have never heard the word ecosystem. 3. Look at the picture. In this ecosystem we see deer, rabbits, birds, grasses and trees. 4. An ecosystem is all of the animals and plants in a particular area, and how they are related to each other and to their environment. 5. Un ecosistema está formado por todos los animales y plantas que viven en un área específica, y que se relacionan entre sí y con su medio ambiente. ecosistema 6. Who can name a living thing in the ecosystem near our school? [Possible responses: birds, squirrels, skunks, trees, ladybugs, etc.] Direct Instruction of Individual Words Vocabulary Word abiotic ___________ cognate? yes no *Definition in English and in Spanish *Sentence completion Abiotic describes the nonliving parts of the environment, including light, temperature, rocks, and gases. Abiótico en el medio ambiente se refiere a algo que no tiene vida, incluyendo la luz, la temperatura, las rocas y los gases. ___________ Some abiotic factors I can sense or see outside today are _________________________________ adaptation An adaptation is a change or changes that help an organism survive and reproduce in its habitat. ___________ cognate? yes no ___________ characteristic ___________ cognate? yes no ___________ Adaptación se refiere a los cambios que ayudan a un organismo vivo a sobrevivir y a reproducirse. An adaptation to living in the cold, snowy tundra might be moving to a __________________________________. A characteristic is a quality or feature that makes something different. Característica es la condición o cualidad que distingue una persona o cosa de sus semejantes. The characteristic that makes zebras different from horses is their _________________________. Picture Sketch Word-Learning Strategies: Nominalization Word-Learning Strategies: Irregular Plurals 19 Word-Learning Strategies: Cognates Student Chart 6.4A Warm-Up English Word English Meaning Spanish Word Necessary Necesario Flexible Flexible Pie Pie Spanish Meaning Student Chart 6.4B Work with a partner to find all the cognates in the paragraph. There are nine more. The Chemicals of Life The cells of all living things are composed of chemical substances. The most abundant chemical substance in cells is water. Other chemical substances called carbohydrates (kar boh HY draytz) are a cell’s main energy source. Two other chemical substances, proteins (PRO teenz) and lipids (LIP idz), are the building materials of cells, much like wood and bricks are the building materials of houses. Finally, nucleic (noo KLEE ik) acids are the genetic material—the chemical instructions that direct the cell’s activities. 20 Word-Learning Strategies: Cognates Student Chart 7.4B Spanish English Cognate sustancias substances químicas [chemicals] célula [cells] compuestas [composed] abundante [abundant] energía [energy] carbohidratos [carbohydrares] proteínas [proteins] lípidos [lipids] materiales [materials] finalmente [finally] ácidos acids nucleicos [nucleic] genético [genetic] instrucciones [instructions] dirigen [direct] actividades [activities] Letter(s) in Spanish, not in English Cognate 21 Word-Learning Strategies: Cognates Student Chart 7.4C Identification of Sound Differences Using the ELMO, show students the following Likert Scale. Explain to students that some of the cognates sound more alike than others. Direct students to identify how alike or not alike the sets of cognates sound on a scale of 1 to 4. Sounds completely Sounds slightly Sounds exactly Sounds similar different different alike 1 2 3 substances / 1 4 substancias 2 3 4 3 4 3 4 chemical / químicas 1 2 cell / célula 1 2 compose / compuestas 1 2 3 4 abundant / abundante 1 2 3 4 3 4 3 4 energy / energía 1 2 protiens / proteínas 1 2 carbohydrates / 1 carbohidratos 2 3 4 3 4 3 4 lipids / lípidos 1 2 materiales / materials 1 2 22 Language Rich Environments • Shared interactive reading – Turn to Student Chart 2.10. – Listen to the Guiding Questions: • How are weathering, erosion, and deposition related? – As the text is read aloud, read along silently in your Student Chart and be prepared to answer the questions. 23 Language Rich Environments 24 Language Rich Environments weathering chemical erosion deposition mechanical wind, water and gravity chemical reactions physical change sediment Use the words below to fill in the concept map: Deposition; Erosion; Weathering; Chemical; Mechanical; Physical; Physical change; Chemical reactions; Wind, Water and Gravity; Sediment; Land 25 Earth land Language Rich Environments Comprehension Strategies Embedded in Interactive Reading Incorporation of L1 Language and Culture • Definitions provided in Spanish • Students allowed to answer in L1 – In whole class context – During partner work • Opportunities for overlapping talk – In partners and small groups 27 Partner Work #2 • Turn to your partner. • Share what you have learned about developing language and literacy in content instruction. • Note strategies and activities that you would like to bring back to your classroom. • Discuss methods you currently use to scaffold content. • What would you like to learn from the presentation to help you scaffold content? 28 Scaffolding Content • Review and reinforcement • Using graphic organizers • Partner work pairing ELLs with more proficient speakers • Active Learning • Throughout – – – – Using visuals and multi-media Teacher modeling Clear written instructions and examples of what students have to produce independently Assessment 29 Review and Reinforcement: Genetics 1. Which of the following is true? a.Recessive traits occur more often. b.Offspring created through asexual reproduction are genetically different from their parent. c.If the offspring has both the dominant and the recessive alleles (Bb), it might have the recessive trait. d.Offspring created through asexual reproduction have the same genetic material as their parents. 30 Review and Reinforcement (cont.) 2. Circle the organism that will have the most genetically diverse offspring. a planarian male female potato sprout 31 Review and Reinforcement (cont.) Choose from these words to complete the sentences below: asexual reproduction, chromosome, DNA, genes, requires, sexual reproduction chromosome is a structure in the cell nucleus 3. A _____________ that carries genes. Asexual reproduction a type of reproduction in 4. ____________________is which a new organism is produced from one parent and has the same DNA as the parent. DNA 5. ________ is made up of two chains of molecules that are twisted together in a spiral and hold the genetic material of all organisms. 6. Sexual reproduction requires ________ two parents. 32 Review and Reinforcement (Review Game) 1. Each student gets 1 or 2 Zip-Around cards. • Each card has an answer on one side and a question on the other side. • Somebody in the room has a card with the answer to your question. 2. Take a minute to read your card to a partner and listen to your partner as he/she reads their card to you. Question: Who has the … Answer: I have the …….. 3. The teacher will call on a student who will stand up and read his/her question. 4. Listen to the question. 5. If you have the answer, stand up and read it. Then read your question to the class. 6. The game continues until the person with the first question that started the game has read his or her answer. 33 Graphic Organizers: Plants _______________________ endoplasmic reticulum __ vacuoles cell wall cell membrane nuclei mitochondria cytoplasm Animal cell chloroplast Plant cell 34 Graphic Organizers: Plants Use the cell diagram in Student Chart 1.5 to compare animal and plant cells in the Venn diagram. Write the names of the organelles in the appropriate part of the Venn diagram. 35 Graphic Organizers: Plants Organelles found in both Animal cell organelles Plant cell organelles cell wall nuclei smaller vacuole cell membrane chloroplasts mitochondria cytoplasm larger vacuole endoplasmic reticulum chlorophyll •Animal cells are similar to plant cells because… •Animal cells are similar to plant cells because they both have nuclei. •Animal cells differ from plant cells because… •Animal cells differ from plant cells because they have smaller vacuoles. 36 Partner Work: Plants Look at the picture and discuss #1-3 with a partner: 1. Which way do roots grow? 2. How do they know which way to grow? 3. Could you ‘trick’ a plant into making its roots grow up? – Explain your thinking. 37 Partner Work: Ecological Succession 1. Watch the video with your class. It is about ecological succession. Listen for these words and check them off as you hear them in the video: stages species primary ecological succession pioneer species abiotic secondary ecological succession grow rapidly farming climax community biodiversity 38 Partner Work: Ecological Succession 2. Watch the again video two more times with the sound OFF. • Each time the video plays, a partner will narrate. • As you narrate, use as many of the words in Student Chart 10.5 as possible. • To describe each stage of ecological succession use words like “first, second, next, then, finally.” 3. Watch the video one more time. A classmate will narrate it for the class. 39 Active Learning #1: Ecology • We will pretend that we are all living together in an ecosystem. • Each pair will be 1 type of organism: a. insects b. lichens c. pine trees d. grasses e. oaks and maples f. mammals • Each organism starts with 100 survival points. • Different events, like a volcanic eruption, will happen to change the ecosystem and each organism will react differently. • Sometimes your organism will adapt positively and you will WIN points. – I will tell you how many points to ADD. • Sometimes your organism will adapt negatively and you will LOSE points. – I will tell you how many points to SUBTRACT. • You should keep track of your points in Student Chart 10.7 by adding or subtracting points to get a new subtotal. 40 Active Learning: Ecology 41 Active Learning: Ecology 1. What caused your organism to win points or to lose points during the stages of ecological succession? 2. What did you learn about the speed of plant and animal succession in an ecosystem? 42 Active Learning #2: Ecology 1. We will be making food chains. 2. Read the name of the organism on your card to a partner and decide if the organism is a producer, a consumer, or a decomposer. 3. As the class reads the names of their organisms aloud, think about how your organism is connected to the other organisms. 4. We will use string to model the connections between organisms in a food chain. 43 Active Learning: Ecology 1. Is this a perfect model of a food web? 2. What would happen if one of the organisms was removed from the web? How would this affect the biodiversity of the ecosystem? 44 Active Learning #3: Ecology • During this activity you will be a travel agent for a specific biome and try to convince or persuade the class that we should visit your biome. • You will each make a brochure or Power Point for one biome and then you will present it to the class. – Before creating your brochure, you will see a sample brochure. – You will also listen to a presentation that shows you the kind of information that you should put in your brochure. • During the presentations you will take notes on the characteristics of all biomes and their organisms and then you will decide which one you would like to visit. 45 Tundra brochure 46 Tundra brochure 47 Vocabulary Assessment food chain is a simple model of I 1. A(n) _________ __ how energy moves from producers to consumers in an ecosystem. C 2. _________ Biotic __ describes the living parts of the environment. K 3. To _________ __ is to point out, find, or identify name something. Science Assessment Partner Work #3 • Share what you have learned from the presentation about scaffolding content for English-language learners. • Note strategies and activities for scaffolding content that you would like to bring back to your classroom as a result of the presentation. 50 Contact CREATE • Find out more about CREATE’s projects and activities at www.cal.org/create. • Subscribe to the email announcement list to receive regular updates from CREATE: www.cal.org/create/join. 51