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Learning task 1

Provide context-embedded support

Provide context-embedded support that scaffolds the learning of ESOL students so they can achieve the same learning outcomes.

Mainstreaming ESOL students and planning specific language support for them enables the students to develop content knowledge at the same time as they develop language skills.

Support students' learning by:

  • beginning with context-embedded tasks (practical work, visual support, 'hands-on' experience)
  • linking new information to what the students already know
  • focusing on the language of science in whole class feedback sessions.

What to consider:

  • What activities have I included that provide a context embedded scaffold for my ESOL learners?
  • Where have I written the learning outcomes?
  • Are the students aware of them?

Write the language and content learning outcomes on the board and refer to these criteria regularly.

Content learning outcome

  • Students will be able to describe the difference between acids and bases.

Language learning outcome

Language structure

  • Lemon juice stings on a cut because it is corrosive (simple present tense verb with causal conjunction).
  • Toothpaste is used to remove plaque on teeth (passive verb).
Learning task 1
Teaching and learning activities Principles

Provide context embedding

Use the Picture Sequence (Word 42KB) for discussion before students complete this interactive cloze.

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Interactive cloze

Purpose:

Interactive clozes help students to work out meaning from context and to think about how written language works. Some of the gaps can be accurately filled by a variety of words and discussion of these in class can be very productive.

Method:

  • When using the cloze activity the students first work on their own to fill in the gaps, then discuss their answers in pairs or small groups. The teacher then leads a class discussion, looking at the alternatives and pointing out the clues in the text.
  • Read the text carefully and use the context and grammatical clues in the sentence to work out the missing words.

    Acids are very common substances and are widely used in everyday life. Citric ..... is found in tomatoes and citrus fruits such as oranges and lemons. The bubbles in fizzy ..... are due to carbon dioxide which dissolves in water to form carbonic acid. Acids on your skin sting because they are corrosive and attack your ..... tissues. This is why lemon juice ..... if you get it in a cut on your finger. You ..... eat fruit that contains acids because the concentration is very dilute. A ..... acid is one that contains a large amount of water and a small amount of acid. Your stomach contains gastric juice. Gastric ..... is made up of hydrochloric acid and enzymes. Both chemicals help to kill microbes and aid in the digestion of food. The stomach wall ..... protected from acid attack by a sticky fluid mucus lining.

    Bases are used in the home for two purposes. Firstly, they can neutralise acids. Toothpaste is an example of a weak base that is used to ..... acids formed by plaque bacteria on your teeth. Bases can also be used to dissolve grease ..... dirt. Bases which are soluble in water are called alkalis. Household cleaners are bases which are made up of ..... such as ammonia and sodium hydroxide (commonly called caustic soda). Common alkalis include indigestion powders and tablets ..... neutralize acids in the stomach. Some alkalis feel soapy to touch, this is ..... they turn the oils on your skin into soap.

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Learning task 3

Receptive and productive language

Ensure a balance between receptive and productive language such as joint construction of text or Say It!

What to consider:

  • What speaking (as well as listening) did my students have to do? What writing (as well as reading) did my students have to do?
Learning task 3
Teaching and learning activities Principles

Joint construction of text

Modelling how to write a paragraph

Acids

Using the information from your tables and sentences to construct a short paragraph stating which chemicals can be classified as acids.

Show the students the Model paragraph (Word 23KB) . Highlight the definition (Bases are solutions that can neutralise acids) that begins the paragraph.

Subject General classification Specific classification
 Bases  are solutions  that can neutralise acids.
 Or - a base  is a solution  that can neutralise acids

Point out how the second sentence is constructed - "toothpaste is a base because it ...". (Discuss the use of the conjunction (because) and the use of the pronoun referent 'it' that exemplifies other ways of tying the parts of a sentence together.)

Together with the students construct a similar paragraph on the whiteboard on indicators - discuss the students' suggestions with reference to the model paragraph. Be explicit about how language is used in science. Research has found that it is not the technical words that cause the most difficulty but the use of common English words in a scientific context.

The students work in pairs or threes writing their own paragraphs on acids, using the model paragraph and the Joint Construction Checklist (Word 19KB) .

The students work with 2-3 other students in a group discussing paragraphs against the checklist.
More on the features of text forms: explanations.

Principle 6

Say It!

Purpose

This activity provides motivation for all students to try new structures and vocabulary within a small group setting where levels of anxiety are lower. It is often used as an end of topic activity for practising orally the language that has been learned during a topic.

  • Write the grid (Word 55KB) on the board.
  • Practise the Say It! with confident students in the whole class setting.
  • Put the students into groups of about six and choose one student to begin the Say It! in each group. Allocate grid coordinates to that student. The first student then carries out the short role play and then chooses someone from the group to go second and allocates a new set of coordinates to that student.
Principle 6

Learning task 5

Differentiated learning strategies

Use differentiated learning strategies, for example jigsaw reading.

Learning task 5
Teaching and learning activities Principles

Jigsaw reading

Purpose

Jigsaw reading (combined with reciprocal teaching) gives all students a role to focus on when reading, encourages learning from each other, and ensures students use both receptive and productive skills.

Each student in a 'home group' is given a number and moves to join other students with the same number to create an 'expert group'. Each group has a different part of the text to read and discuss, using the steps of reciprocal teaching. When this activity is completed, each member of the expert group should end up with a summary page containing key words and (often) a diagram. They then return to their 'home group' to teach the information to the others in the group (without using the original text). They take turns and the rest of the group listens and records important facts.

After these reading and discussion activities, teachers can set a follow-up task to check comprehension, preferably without students having access to the original text.

  • Text A (easier reading level - the text is amplified to explain word meaning)

    Common acids:

    • Formic acid: Many insects such as bees and ants use formic acid when they sting or bite. Worker bees have a stinger that evolved for combat (fighting). Ants attack and defend themselves by biting, and in many species (different sorts of ants), stinging. When biting or stinging they may inject (put) formic acid into the enemy. The unusual smell we notice when ants are squashed (stood on) comes from this chemical.
    • Acetic acid: The writer Pliny says that Cleopatra, always looking for new beauty treatments, once drank a pearl dissolved in vinegar. This is certainly possible because vinegar has acetic acid in it and pearls are made of calcium carbonate which is like marble (a hard rock). Marble dissolves in acid.
  • Text B

    Common Bases:

    • Caustic Soda: Also known as sodium hydroxide, caustic soda is widely used in industry, mostly as a strong chemical base in the manufacture of vinyl chloride (for PVC), paper, textiles, and detergents. Caustic soda is sometimes also used to wash or chemically peel fruit or vegetables, is used in chocolate and cocoa processing, caramel colour production, soft drink processing, and thickening ice cream.
    • Ammonia: Ammonia is a gas that is often used in fridges, freezers and cool stores. It is very soluble in water and it would be possible to dissolve 700 jars of ammonia gas into one jar of water. So ammonia is one of the most soluble gases known. It has a strong smell that reminds us of wet nappies.
  • Text C

    Strengths of acids and bases:

    • Acids do not all have the same strength. For example, sulphuric acid is a strong acid, whereas citric acid is weak. Acids that react quickly with substances are called strong acids. Acids that react slowly are called weak acids. Most of the acids found in living things are weak acids. There are also strong and weak alkalis.
    • Don't confuse the terms strong and weak with concentrated and dilute. Strong and weak refer to the type of acid or alkali. Concentrated and dilute refer to the amounts of water that have been added to the acids.

Based on Black, M., Jones, T., O'Connell, B. + Percy L. (1990). Readings for the New World of Science. Takapuna: New House Publishers Ltd.

Summing up task for the home group after completion of the jigsaw activity:

Is formic acid a strong or weak acid?

Principle 3

Magnetism

Learners' language knowledge

Student Information (Word 32KB) shows the ESOL students are behind their peers in academic language. In the beginning unit activities Mr L will build his data on the student's scientific language and scientific experiences.

Year: 5-6

Level: 3

Duration: 2 weeks

Curriculum links

Science

Achievement objectives

Making Sense of the Physical World

 Students will:

  • investigate and describe their ideas about magnetism
  • explore how a compass works
  • investigate and describe how magnets are used in the home.

Scientific skills and attitudes

Students carry out scientific investigations and report on their findings.

Teaching and learning activities

Learning task 1
Exploratory activity to ascertain language and content knowledge.

Learning task 2
Make a nail magnet.

Learning task 3
Discuss the poles on a magnet.

Learning task 4
Provide multiple opportunities for authentic language use - dictogloss.

Learning task 5
Investigate how a compass works - jigsaw reading.

Learning task 6
Using receptive and productive language.

Learning task 7
Write a question about the ends of a magnet.

Resources

Magnets, paper clips, thread, paper, iron nails, scissors, pins, compass.

Assessment

Assessment activities link directly to the learning outcomes.

  1. Teacher and student organised structured overview:

    Vocabulary
    Magnets, magnetism, lodestone, magnetite, metals, iron, to attract, to repel, filings, a compass, to magnetise, to demagnetise, strong, weak, poles, vice versa, energy, force, a molten layer, a tape, some thread, to dangle, a segment, hanging pin, to spin, to sprinkle, patterns.

  2. Each student uses appropriately scientific writing to create a fact sheet explaining how magnets work. Each fact sheet contains two or three untruths. These sheets are exchanged with a partner. The partner's task is to rewrite the sheet. Both sheets could be handed in to the teacher and assessed for depth of conceptual knowledge and appropriateness of scientific writing.
  3. Students self evaluate their writing about magnetism. How well can I write a fact sheet about magnetism using scientific writing?

Learning task 5

Investigate how a compass works - jigsaw reading

Jigsaw reading (combined with reciprocal teaching) gives all students a role to focus on when reading, encourages learning from each other and ensures students use both receptive and productive skills.

What to consider:

  • Do all the ESOL students have a role that allows them to actively participate in this lesson?
  • Have I provided enough language support enabling my ESOL students to participate?
Activities

Use texts (Word 45KB) with differing reading levels that suit the reading levels of groups in your class.

Each student in a 'home group' is given a number and moves to join other students with the same number to create an 'expert group'. Each group has a different part of the text to read and discuss, using the steps of the reciprocal teaching. When this activity is completed, each member of the expert group should end up with a summary page containing key words and (often) a diagram. They then return to their 'home group' to teach the information to the others in the group (without using the original text). They take turns and the rest of the group listens and records important facts.

After these reading and discussion activities, teachers can set a FollowUpTask (Word 24KB) to check comprehension, preferably without students having access to the original text.

Principle 3



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