Lesson 69 Putting shapes together

Transcription

1 Lesson 69 Putting Learning objectives Children will: fit 2D over larger 2D. compose 2D to make larger. copy a model composed of 3D objects. Australian Curriculum Content Descriptions Measurement and Geometry Shape ACMMG022 Recognise and classify familiar twodimensional and three-dimensional objects using obvious features. ACMMG042 Describe and draw two-dimensional, with and without digital technologies. Using units of measurement ACMMG006 Use direct and indirect comparisons to decide which is longer, heavier or holds more, and explain reasoning in everyday language. ACMMG037 Compare and order several and objects based on length, area, volume and capacity using appropriate uniform informal units. Key vocabulary triangle, square, rectangle, semicircle, circle, compose, hexagon, 3D, object, model,, =, numbers 0 10, largest, area, far away, near, behind, in front, on, next to, smallest, share, equally, larger, smaller Extra assistance When teaching students to compose, reinforce their use of correct vocabulary. Ask them to name the 2D or 3D objects they used and also to name the shape they composed. Have them explain how they made the shape, encouraging them to use words such as fit, match, equal sides, same size, 2D and 3D. Use more complex vocabulary in your dialogue with them to familiarise them with the terminology, eg compose, composition and composite figure. Classroom activities Collage Provide students with a piece of paper and lots of cut out of coloured paper triangles, squares, rectangles, semicircles. Ask them to compose larger, recognisable using 2 or more of the coloured and glue them onto the paper. They must label each shape with its name when it is composed. Make it! Have students use a variety of recycled materials such as tubes and boxes as well as cardboard they can cut and shape to create a recognisable object from 3D. Then ask them to write a label naming the object and the 3D they used to make it, for example: a rocket cylinder, cone, cube. Mathseeds Lesson sequence TEACH Content and skills PRACTICE Children will: APPLY Animated Lesson: Compose Introduce the idea of composing putting things to make new. fit smaller 2D onto larger 2D. Copy a model using 3D objects. Worksheet 1 2D Sort: Big Small Short Tall, Largest Area, Smallest Area, How Many Squares?, Position Differentiate items by size. Identify which item has the largest or smallest area. Measure area in squares using a grid. Differentiate between items based on position. order items by size. Choose the biggest or smallest item. Count the squares in each shape and identify which is larger. Sort items using position vocabulary. Worksheet 2 Compose Draw: Dotty Shapes Reinforce correct formation of. draw using a set of dots as corners. Worksheet 3 3D objects Calculate: Number Bar Take Away, Cows in Paddocks, Smaller or Larger Number Find the difference between two numbers on the number line. Divide items into equal groups. Recognise which number is smaller or larger. put two number bars on the number line and find the difference. Share items into equal groups. Label two numbers smaller and larger. Worksheet 4 Check Read: Book Read aloud book. listen, follow the reading and read along. Mathseeds book 69: Putting 110

2 Lesson 69 Worksheet 1 2D 1 Draw. a triangle a rectangle a square 2 Draw one line to change each shape into 2 triangles. 3 Draw 2 lines on each shape to make 4 smaller 2D. the you have made. 112

3 Lesson 69 Worksheet 2 Compose 1 Draw 2 rectangles making a square. 4 squares making a rectangle. 2 Put 2 half circles. What shape did you make? 3 Put 4 triangles. What shape did you make? 113

4 Lesson 69 Worksheet 3 3D objects 1 Colour the cones red, the cubes blue, the cylinders green and the rectangular prisms yellow. 2 Draw your own object made from 3D. Colour. 114

5 Lesson 69 Worksheet 4 Check 1 How many different ways can you make these using smaller? Use pattern blocks to help you. 115