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Measuring words and sorting

Describe length, height, weight and capacity, then compare and classify.

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

Name the feature, compare it fairly and record the group counts.

2. Measuring words

3. Choose what to compare

A bag can be long and light. Length and weight describe different features. To compare ribbon lengths, line up one end of each ribbon. Straighten them without stretching. The ribbon that reaches farther is longer. Starting one farther forward would make the comparison unfair.

4. Compare and sort

Height describes how tall. Compare towers from the same tabletop. Compare weight with a balance, not by looking at length. Compare container capacity using the same cupfuls of dry counters or water with adult help. A tall narrow container need not hold more. Sort objects by one chosen comparison rule. Record one dot per object, then compare the group counts.

5. Compare two ribbon lengths.

1. Line up the starts.

   Both begin at the same edge

   Different starts could mislead us.

2. Compare the far ends.

   The farther end belongs to the longer ribbon

   Both lengths are measured from the same place.

6. A long light rod and a short heavy rod: which weighs more?

1. Choose the correct feature.

   weight

   Length alone cannot answer this question.

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

   Use the given weight evidence.

7. Guided practice

You want to know which ribbon reaches farther along a table. What are you comparing?

• length
• weight
• capacity

Audio transcript: None

8. Guided practice

Match each question to the feature it compares.

Audio transcript: None

9. Practice

A chart records sorted rods. Long rods: ● ● ● ●. Short rods: ● ●. Each dot is one rod. Write the counts.

Long: _l. Short: _s.

Audio transcript: None

10. Somewhere new

A new display lines up rod ends. Four rods pass a marked line; two stop before it. Each dot in the chart stands for one rod. Which report fits?

• The passing rods are longer than the mark's distance; their category gets 4 dots, and the shorter category gets 2.
• The longer category gets one dot because all long rods make one group.
• The passing rods are heavier, so the chart measures weight.

Audio transcript: None

11. Lesson test

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

12. Test question

Ribbons were compared with the same start and mark. Record this new graph's category counts. Each dot means one ribbon.

Pass the mark: ● ● ● → _l Stop before it: ● → _s

Audio transcript: None

13. What you can do now

How would you compare two ribbons fairly? Explain why a longer ribbon need not be heavier.

Working for the steps left to you

6. A long light rod and a short heavy rod: which weighs more?, step 2