Learn with Amar
Teaching video
A teaching recording for this chapter has not been published yet. Start with the worked example below and explore the related animations where available.
Grade 1 chapters and video availability01 · Read and understand
What you will learn
- Compose ten from two smaller groups.
- Explain your method and check what the result means in the stated situation.
Before you start
Recognizing small groups and saying counting words; an adult may read the prompts aloud.
Keep paper nearby. Read the question once for the context, then again to identify what is known and what you need to find.
Start with a question
A ten-frame has 6 counters. How many empty spaces remain?
Why this math matters
Prepare a full pack of ten by finding how many items must be added. The worked example shows how to connect the situation, its mathematical representation, and a check on the result.
Set up the model
A useful answer starts with clear assumptions:
- Use the units, grouping rules, and reference whole stated in the question.
- Treat the supplied counts and measurements as exact within the classroom model, unless an estimate or a random outcome is requested.
02 · Work through the example
Follow the reasoning, one step at a time.
Try to predict the next step before reading it. After each calculation, explain why the operation makes sense and how it helps answer the original question.
Work through it with Amar
See this example unfold.
The complete worked example, one idea at a time.
Find the missing part of ten
PausedQuestion: Start with the question. Paused.
Question
Start with the question
A ten-frame has 6 counters. How many empty spaces remain?
Before you calculate
Read what is known and what you need to find. Make a prediction before moving to the first calculation.
Starts paused. Play advances through the full text at a reading pace; pause whenever you need more time. Previous, Next, and the phase buttons let you set your own pace. Playback pauses when this walkthrough leaves the screen or you switch tabs.
Your device’s reduced-motion setting keeps each phase still. Manual controls remain available. The full written solution stays below.
Represent the situation
10 spaces; 6 filled
The whole frame holds ten counters.
Connect the parts
6 + ? = 10
Count the four empty spaces or count on to ten.
State and check the result
6 + 4 = 10
Four is the part that completes the frame.
The result
6 + 4 = 10
Four is the part that completes the frame.
Common mistakes to catch
- The missing part is not another six.
- Count empty spaces, not all spaces, when asked what is missing.
03 · Practice independently
Try it before revealing the answer.
Use paper or a calculator as needed. Write your units and reasoning, then open the hint or explanation to check your approach.
Practice 1
Seven birds occupy a ten-place perch. How many spaces are free?
Show a hint
Find seven's partner to ten.
Reveal answer and explanation
3
7 + 3 = 10.
Practice 2
Give two different pairs of positive numbers that total ten.
Show a hint
Move one counter from one part to the other.
Reveal answer and explanation
For example, 2 and 8; 3 and 7
Both pairs keep the total at ten while changing its parts.
Take the idea with you
Prepare a full pack of ten by finding how many items must be added.
04 · Reflect and continue
Can you explain it in your own words?
Before moving on, explain the main idea without looking at the worked example. Try both practice questions, check your reasoning, and name one mistake you now know how to avoid. Return to a step if you still need support.
Up next: Teen numbers are ten and ones
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