What are "basic facts"?
1. Which of the following are considered basic addition and subtraction facts?
a. 3+8=11 yes (3 and 8 are between 0 and 10)
b. 16+2=18 no (16 is greater than 10 or even 12)
c. 4+2=6 yes (2 and 4 are between 0 and 10
d. 15+12=27 no (15 is greater than 10 or even 12)
e. 9-3=6 yes (3 and 6 are between 0 and 10)
f. 12-3=9 yes (3 and 9 are between 0 and 10)
g. 15-7=8 yes (7 and 8 are between 0 and 10)
h. 15-2=13 no (13 is larger than 10 or even 12)
i. 19-5=14 no (14 is larger than 10 or even 12)
j. 25-12=13 no (13 is larger than 10 or even 12)
What strategies will we be looking at?
2. Is counting all considered a counting strategy?
No, it is considered part of the direct modeling strategy.
3. In what order do children typically learn/figure out these ways of adding and subtracting numbers.
b. direct modeling--first
c. counting on and counting back
a. memorizing some facts and deriving other facts from the ones they have memorized
d. memorizing all of the facts.--last
What are our sources of information?
4. Why are we using the Thinking With Numbers question and answer site as our primary text?
Because it's written by people who have been doing research on teaching and learning basic facts, and have a lot of knowledge and resources to share.
5. Why should we care about basic facts?
Because they keep on being useful in math, and we spend a lot of time on them in grades 2-6.