Back to the on-screen lesson · Print

Putting numbers in order

Arranging numbers from smallest to largest, and knowing what comes next.

Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.

1. What you will learn

Today we use counting to arrange number cards and fill gaps in a number path.

2. Path words

3. Counting makes a path

Counting words follow an order. A number you say earlier names a smaller amount than one you say later. To arrange number cards, say the sequence slowly. Place a card when you reach its number. You may start at one if starting farther along feels hard. Number cards can be shuffled, but the counting order stays the same.

4. Gaps and neighbors

Cards 2, 5 and 8 still go in that order, although some numbers are missing. A path with consecutive labels is different: no number is skipped. To fill a gap, check both neighbors. Your number must come after the first neighbor and before the second.

5. Toy queues

Make a row of toy waiting places. Label them in counting order. Hide a middle label and ask a partner to replace it. Check by moving one finger along each place.

6. Sort three labels

1. Read the offered labels.

   8, 2, 5.

   They are shuffled.

2. Count and place them.

   2, 5, 8.

   Two comes before five; five before eight.

7. Repair a gap

1. Read both known neighbors.

   3, __, 5.

   The labels are consecutive.

2. Your turn: work this step out. Its working is at the end of the packet.

   Supply the neighbor.

8. Guided practice

Arrange these number labels in counting order, smallest first.

Number the steps in order (write the number in the box):

• 2
• 4
• 6
• 10

Audio transcript: None

9. Guided practice

Put these five neighboring number cards in order, least first.

Number the steps in order (write the number in the box):

• 2
• 3
• 4
• 5
• 6

Audio transcript: None

10. Practice

Complete this little counting sequence.

6, _middle, 8

Audio transcript: None

11. Practice

A number card says 6. Supply its immediate counting neighbors, one before and one after.

_before, 6, _after

12. Somewhere new

Toy train stops have consecutive labels. Replace the two missing labels.

4, _first, 6, _second, 8

Audio transcript: None

13. Lesson test

Lesson test: one question per skill, one attempt each, no hints. Your answers are checked when you submit.

14. Test question

Finish the consecutive labels on a stepping path.

6, _a, 8, _b, 10

Audio transcript: None

15. What you can do now

Explain or show how counting helps you place a missing number between two neighbors.

Working for the steps left to you

7. Repair a gap, step 2