|It is an expectation that all students know from memory their addition and subtraction facts within 10 by the end of their first grade year.|
|Students will extend this standard by using strategies to add and subtract within 20. As well as extending the counting sequence to 120 at a time.|
What your child is learning in Quarter 1
- Add and subtract within 5
- Read, write and represent numbers to 60
- Begin strategies to add within 20
Addition and Subtraction Combinations
- Counting on Strategy
- Add and subtract within 20, using objects, drawings and equations
- Combinations of 10
- Equivalent Equations 6+4= 5+5
Solving Story Problems using Addition and Subtraction
- Add and subtract in word problems
- Find the unknown number
- Incorporate counting on and counting backwards
- Understand the meaning of equal
At Home Activities
- Practice counting objects (cheerios, pennies in a jar, pieces of candy, etc) Start with 0 pieces in a bowl and count on; Start with 6 pieces in a bowl and count on; Start with 12 pieces in a bowl and count on.
6 7 8 9 10 11
- Practice counting forward and backward while: jumping rope, driving in the car, walking down steps.
forward 101, 102, 103, 104,…
backward 84, 83, 82, 81, 80, 79,…
- Roll single digit number cubes (dice) and add them together.
6 + 5 = _____________
- Practice writing the numbers from 0 – 60
- Look for numbers they might write backwards i.e. 2,5,7
- Look for 2-digit numbers that are switch around i.e. 21 as 12 or 34 as 43.
|Paper/Pencil||Sand||Shaving cream on a cookie sheet||Crayons||Dry erase markers and boards||Chalk|
- Use flash cards to review facts within 5.
- Card Play
- Divide a deck of cards between two people.
- Each person turns over 2 cards.
- Find the sum of each set of two cards.
- Ask if the sums are the same/equal? If they are not equal whose set is larger?
- Modifications: Face cards can be given values of 11, 12 and 13
|Addition||To join two or more groups together to find the total or sum. 2 + 3 =|
|Equal to||(=) having the same value; the same as|
|Number Bond||A graphic organizer that shows the relationship between the “whole number” and the “parts” it’s made of.
This example uses a number bond to when adding two numbers that have a sum greater than 10.
|Subtract||To find the difference when two groups are compared or to find out how many are left when items are taken away from a group|
|Count on||Count forward from any given number.|
|Difference||The answer to a subtraction problem.|
|Count Back||Begin at any given number and count backwards.|
|Sum||The answer to an addition problem.|
|Place Value||The value of the place, a digit in the number can fall. Ex. 38. The 3 is in the tens place. The 3 has a value of 3 groups of 10 or 30.|
Link to videos for quarterly standards
Link to Brochures with strategies
Link to the 8 math practices
This year in first grade, your child will be working on computation within 100.
The fluency standard in which we look for mastery is addition and subtraction within 10.