Dorothy Dalgliesh School

Learning Outcomes for Grade 1 Mathematics

Strand: Number

General Outcome: Develop number sense.


1. Say the number sequence 0 to 100 by:

  • I can say the numbers 0 to 100.

- 1s forward between any two given numbers

  • I can say the numbers between ____ and _____.

- 1s backward from 20 to 0

  • I can say the numbers backward from 20 to 0.

- 2s forward from 0 to 20

  • I can count by 2's (skip count) to 20

- 5s and 10s forward from 0 to 100.

  • I can count by 5's from 0 to 100.
  • I can count by 10's from 0 to 100.

2. Subitize (recognize at a glance) and name familiar arrangements of 1 to 10

  • I can say how many dots are on any card from 1 - 10 quickly without counting each dot

3. Demonstrate an understanding of counting by:

- indicating that the last number said identifies "how many"

  • I can count all blocks in a set and say how many there are.

- showing that any set has only one count

  • I can count a set and say how many there are and then mix up the set and count again and get the same number.

- using the counting-on strategy

  • I can count from number ____ (a) to number _____(b) starting at ____(a) and ending with ____(b)

- using parts or equal groups to count sets.

  • I can count groups of twos to _____.
  • I can count groups of fives to
  • I can count groups of tens _____.

4. Represent and describe numbers to 20, concretely, pictorially and symbolically.

  • I can show and tell about number _____ using blocks (concrete).
  • I can draw a picture about number ____. (pictorial)
  • I can print the numeral ____ to match the counted set. (symbolic)
  • I can match the number word ____ to match the counted set.
  • I can show a number to 10 on a ten-frame. (concrete)
  • I can show a number in 5 different ways. (concrete, pictorial, symbolic)

5. Compare sets containing up to 20 elements, using:

- referents to solve problems.

  • I can build a set of _____ blocks that is the same as the model.
    • I can match _____ blocks to another group of ____ blocks (different).
    • I can build ____ sets of ____ different things.

    - one-to-one correspondence to solve problems.

    • I can build a set of blocks that is _____ fewer than the model.
    • I can build a set of blocks that is _____ more than the model.
    • I can build a set of _____ blocks and a set of ____blocks (different number than the first set) and say which has fewer and which has more.
    • I can look at a picture of _____ blocks and a picture of _____ blocks (different number than the first set) and tell which has more and which has less.

    6. Estimate quantities...

    - to 20 by using referents.

    • I can make a good guess about how many blocks there are in a group using a model of ____ blocks.
    • When I look at a set of blocks and I have two numbers to pick from, I can tell why I chose _____ as my good guess.

    7. Demonstrate an ...

    - understanding of conservation of number.

    • I can tell why ____ blocks is always _____ blocks no matter how I mix them up.
    • I can arrange ____ blocks in ____ ways.
    • I can show a given number in 5 different ways.

    8. Identify the number, up to 20, that is:

    - one more than a given number.

    • I can say the number that is one more than _____.
    • On a ten frame, I can make the number that is one more than _____.

    - two more than a given number.

    • I can say the number that is two more than _____.
    • On a ten frame, I can make the number that is two more than _____.

    - one less than a given number.

    • I can say the number that is one less than _____.
    • On a ten frame, I can make the number that is one less than _____.

    - two less than a given number.

    • I can say the number that is two less than ____.
    • On a ten frame, I can make the number that is two less than _____.

    9. Demonstrate an understanding of addition of numbers with answers to 20 and their corresponding subtraction facts, concretely, pictorially and symbolically, by:

    - using familiar mathematical language to describe additive and subtractive actions

    • I can use words like add, altogether, sum, plus for adding.
    • I can use words like subtract, take away, difference for subtraction.
    • I can act out a problem told to me.
    • I can say if I need to add or subtract to solve a problem.
    • I can use blocks to solve a problem and then print the number sentence that goes with it.

    - creating and solving problems in context that involve addition and subtraction

    • I can make up my own addition problem and use counters to show the action.
    • I can make up my own subtraction problem and use counters to show the action.
    • I can make up my own subtraction problem and use counters to show the action.

    - modelling addition and subtraction, using a variety of concrete and visual representations, and recording the process symbolically.

    • I can draw pictures to solve an addition problem.
    • I can draw pictures to solve a subtraction problem.
    • I can print the number sentence to solve an addition problem.
    • I can print the number sentence to solve a subtraction problem.
    • I can add using a number line.
    • I can subtract using a number

    10. Describe and use mental mathematics strategies (memorization not intended), such as:

    - counting on and counting back

    • I can start with number ____ and count on to ____.
    • I can start with number ____ and count back to ____.
    • I can say how I got an answer for an addition problem that I solved in my head.
    • I can say how I got an answer for a subtraction problem that I solved in my head.
    • I can listen and use other kids%u2019 ideas to help me solve problems in my head.

    - making 10 for basic addition facts and related subtraction facts to 18.

    - using doubles for basic addition facts and related subtraction facts to 18.

    • I can say all the double facts to 20.
    • I can solve the addition fact ____ plus ____ by using the doubles fact ____ plus _____ and add 1

    - thinking addition for subtraction for basic addition facts and related subtraction facts to 18.

    • I can say all the addition and subtraction facts for 3 given numbers in a fact family.