Number Talks for 1st Grade: Addition and Subtraction by

Introduction to Addition

annasophia7_1 — 2024-07-14 01:29:26 UTC

Today, we're going to learn about adding two numbers together. Solve 7 + 7. How did you get the answer? When we add 7 and 7 using ten frames, we get 14. Let's practice with more examples.

Addition Practice

annasophia7_1 — 2024-07-14 01:29:26 UTC

Let's try adding some numbers: What's 4 + 3? How about 2 + 5? Practice these with your classmates.

Why Break Apart Numbers?

annasophia7_1 — 2024-07-14 01:29:26 UTC

Breaking a number into parts can make it easier to add and subtract. For example, breaking 5 into 3 and 2 can make adding simpler.

Practice Breaking Numbers

annasophia7_1 — 2024-07-14 01:29:26 UTC

Let's break apart some numbers: How can we break 7 into two smaller numbers? What about 14?

Using Number Lines

annasophia7_1 — 2024-07-14 01:29:27 UTC

One way to add numbers is by using a number line. Draw a number line and practice adding numbers by hopping along the line.

Counting with Fingers

annasophia7_1 — 2024-07-14 01:29:29 UTC

Another method is using your fingers to count. Show your fingers for each number you are adding!

Draw it Out

annasophia7_1 — 2024-07-14 01:29:29 UTC

Drawing pictures can help too. Draw objects to represent numbers and count them to find the answer.

annasophia7_1 — 2024-07-14 02:22:50 UTC

annasophia7_1 — 2024-07-14 14:54:42 UTC

annasophia7_1 — 2024-07-14 14:56:28 UTC

Handing out a fill the grid worksheet with ten frames, and other manipulatives like marbles and white boards, after our number talk on addition and subtraction so I can assess students and where they still need understanding or if they are ready for more challenges.

CAN YOU EXPLAIN HOW YOU GOT YOUR ANSWER?

annasophia7_1 — 2024-07-14 15:03:09 UTC

Subtraction Practice: Solve 8-4. I wonder how you got your answer? Yes, using number bonds to first see 8 circles then using the number bond you break apart 8 by taking for circles away and then seeing what is left. Great job.

annasophia7_1 — 2024-07-14 15:04:38 UTC

Can you explain how you got the answer 7?

annasophia7_1 — 2024-07-14 15:05:13 UTC