In Singapore Math Level 2A & 2B – Review 8: Lines, Surfaces, Shapes and Patterns, students revisit important topics like lines, surfaces, shapes, and patterns. Through engaging exercises and visual activities, they strengthen their understanding and prepare for more advanced geometry concepts.
Singapore Math Level 2A & 2B – Review 8: Lines, Surfaces, Shapes and Patterns
Name the following shapes.
Solution:
1. circle
2. quarter circle
3. semicircle
4. rectangle
5. triangle
6. square
The figure above has ————– flat surface(s)
Solution:
The figure above has 4 flat surfaces.
There are ———— triangles, ———— semicircles, ———— rectangles, ———— and ———— squares in the figure above.
Solution:
There are 3 triangles, 1 semicircles, 2 rectangles, and 2 squares in the figure above.
Complete the following patterns.
Solution:
9. △△ ◯◯ □□ △△
10. □◺ □◸ ◹□ ◿□ □◺ □◸
11. ⇨⇧⇦ ⇨⇧⇦
Draw dotted lines on each figure, and identify the shapes that form the figure on the lines below.
Solution:
12.
13.
14.
There are ———— straight lines and ———– curves in the above picture.
Solution: There are straight 5 lines and 5 curves in the above picture.
The battery has ———— flat surface(s).
Solution: The battery has 1 flat surface(s).
Look at the shape on the left. Draw the same shape on the square grid on the right.
Solution:
The given picture and the drawn picture will be the same, so try it yourself.
18. Color the objects that have only flat surfaces.
Solution:
Carefully look at each shape on the left. Draw the same shape on the dot grid on the right.
Solution:
The given picture and the drawn picture will be the same, so try it yourself.
