Achievement Objectives
NA2-3: Know the basic addition and subtraction facts.
NA1-3: Know groupings with five, within ten, and with ten.
Specific Learning Outcomes
Recall the facts up to 10, and the teen facts.
Recall addition and subtraction facts to 20.
Description of Mathematics
Number Framework Stages 4 and 5
Required Resource Materials
Flash cards (Material Master 4-29)
Activity
Show the students a flash card.
For example, the card shows 3, 9, and 6. Practice all 12 combinations of every basic fact. Ask problems like: 6 + 3, 9 – 6, 9 – 3, 6 + ? = 9.
The complete list of 12 questions needed for each card is like this:
3 + 6 = ? ? + 6 = 9 3 + ? = 9
6 + 3 = ? ? + 3 = 9 6 + ? = 9
9 – 6 = ? ? – 6 = 3 9 – ? = 3
9 – 3 = ? ? – 3 = 6 9 – ? = 6
Add to plan
Level One
Level Two