Fact Families
Give me the fact families for the numbers 6, 5, 1
5+1=6 6-1=5
1+5=6 6-5=1
Add 5
What strategy can I use to solve 8-4?
Think addition with doubles
Name one definite attribute of a triangle?
3 Vertices
3 Sides
Closed
Polygon
Look at the digital clock. What time is it?
5 oclock
15, 10, 5
5+10=15 15-10=5
10+5=15 15-5=10
What is the rule if I put 9 in and 3 comes out?
Subtract 6
What strategy can I use to solve 10-6?
Think addition with combinations of 10
Name 2 defining attributes of a square?
4 Sides, 4 Vertices, Equal Sides, Closed, Poygon
Look at the analog clock. What time would be shown on the digital clock?
10:00 o clock
12, 4, 8
8+4=12 12-4=8
4+8=12 12-8=4
What is the rule if I put in 14 and 21 comes out?
Add 7
How can I solve 7+4 using combinations of 10?
7+3+1
Is "Having a pattern" a defining attribute or nondefining?
Nondefining
What time is on the analog clock?
4 oclock
Find the Sum and write the fact family.
____, 8, 2
Sum: 10
8+2=10 10-8=2
2+8=10 10-2=8
Find the missing input. The rule is ADD 5. I put a number in and 10 comes out. What is my input?
5
Is it easier to count up or count back to solve 9-2? Why?
Count back because you take less hops.
What shape has 6 sides and 6 vertices?
Hexagon
Draw an analog clock. Show 7 oclock.
Minute hand at 12 and Hour Hand on 7
Look at the triangle. Create the fact family.
10+4=14 14-10=4
4+10=14 14-4=10
Find the missing input. The rule is subtract 8. I put in a number and 20 comes out. What is the input?
28
Is it easier to count up or count back to solve 6-4? Why?
Count up because it takes less hops.
Name 1 nondefining trait
Color, Size, Direction
How many times does the minute hand go around the clock for 3 hours?
3 times