1. Measurement Model of Addition
Set Model of Addition
Measurement Model of Addition
Rods

2. Subtraction Models Take Away (sets) Missing Addend
Comparison (how many more)
Number line

3. Multiplication Multiplication as repeated addition Sets Number Line
Rectangular Area

4. Division of Whole Numbers
Repeated Subtraction
Partition
Missing Factor

5. How many groups?
A ÷ B
8 ÷ 2
8 objects are divided into groups with 2 objects in each group.
“How many Groups?”

7. Adding & Subtracting in Other Bases
143 five
+234 five

8. Subtract
231 five five
144 five five
32 five five

9. Convert to Base 10 notation
413 five five
100 five seven
213 six six
2E4twelve 1TEtwelve

10. Subtract
231 five five
144 five five
32 five five

11. Test for divisibility A number N is divisible by
2 if the last digit is an even digit(0,2,4,6,8).
3 if the sum of the digits is divisible by 3.
5 if the last digit is a 0 or 5.
6 if it is divisible by 2 & 3.
9if the sum of the digits is divisible by 9.
10 if the last digit is 0.

12. Tell which of the following are divisible by 2,3,5,6,9,or10
43,826
111,111
26,785
5,280

13. Finding GCF & LCM by using Prime Power Representation.
Euclidean algorithm.
Venn Diagrams

14. Integer Representation
Colored counters
Black = +
Red = -
Game keeping score.
Mail Time Representation
Number Line Representation

15. Addition of Integers
Represent sum of integers using colored counter diagrams.
Mail Time Stories ( pg 297)
Number Line

16. Subtraction of Integers
Using colored Counters.
7- 4
BBBBBBB
RRRRRRRR

17. Draw Diagrams for each of the following:
7 – 4
8 - -5
7 – 10
-7 - 3

18. Mail Time Stories
Pg 317
Multiplication
Division

19. Order of Fractions a/b is less than c/d if and only if ad < bc.
Mickey Mouse.
Fraction strips Pg 355
Diagrams.
Activity 5
Comparing fraction by Reasoning

21. Adding & Subtracting Fractions with different denominators.
Pattern Block Worksheet.
Activity 7 wkst.

23. X =

25. Division of Fractions

26. What is the whole
Using pattern blocks
Diagram
Word Problems for x & /
Percents – diagrams
Ratios & Proportions.