## Description

**Gr.4 K4 Math Activity Book with Thinking Tools [PDF]**

Author: Karelien Kriel

Number of pages: 100 (book) + 66 (memo)

Number of activities: 24

**Activity 1**: count forward and backwards in 2s, 3s, 5s, 10s, 25s, 50s and 100s; flow maps; definitions; brace map; questions

**Activity 2**: definitions and examples of number and digit; brace maps; definitions and examples of number values and place values; tree map; expanded notation; write from small to large and large to small

**Activity 3**: rounding off to the nearest 10, 100 and 1Â 000; brace map; rules and examples; tree maps

**Activity 4**: definitions and examples of doubling and halving; brace map; double (triangles); bridge maps

**Activity 5**: halve (triangles); bridge maps; secret number

**Activity 6**: probabilities and laws of numbers and operations; conclusions

**Activity 7**: addition of 4-digit numbers; own maps; columns

**Activity 8**: subtraction of 4-digit numbers; own maps; columns

**Activity 9**: mass; convert between kg and g; bridge maps; fit mass into larger mass (word problem)

**Activity 10**: mass; read the mass of the productsâ€™ packaging; order mass; fit mass into larger mass (word problem); convert between kg and g; tree maps; read the mass (in kg) of the scales (analogue and digital)

**Activity 11**: 3D-objects; brace map; definitions of prism, face, round faces, flat faces, edges and vertices; complete tables; names of prisms: cube, rectangular prisms, cylinder, cone and sphere; number or edges; number or faces; shapes of faces; round or flat faces; similarities and differences between cubes and rectangular prisms; similarities and differences between cones and cylinders

**Activity 12**: fractions; brace map; definitions of fraction, denominator and numerator; bridge maps; equivalent fractions; order fractions from small to large and large to small

**Activity 13**: fractions; addition of fractions with the same denominators; simplify

**Activity 14**: fractions; simplest form; simplify fractions

**Activity 15 â€“ 16**: multiples of 2, 3, 4, 5, 6, 7, 8 and 9; divide 3-digit numbers by 1-digit numbers; divide without a remainder; divide with a remainder

**Activity 17**: 2D-shapes; perimeter; measure; calculate; square; rectangle; irregular hexagon; irregular octagon

**Activity 18**: 2D-shapes; area; count blocks; square; rectangle; irregular shapes; count and estimate area of three-quarter of a circle, circle and rectangle

**Activity 19**: 3D-objects; blocks; irregular objects

**Activity 20**: grid references; brace map; definitions of horizontal, vertical, direction and grid reference; give grid references; give directions; describe routes

**Activity 21**: tessellation; tiles; squares; rectangles; hexagons; draw and colour in

**Activity 22 â€“ 23**: Geometrical patterns; tables; input waardes; output waardes; rules; ascending; descending

**Activity 24**: probability; coins; dice; fractions