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1st grade · Science · Unit 1 of 11

Length, Area & Weight

Compare things and change them!

What your child practices

Objects have properties we can measure: how long, how much flat space they cover (area) and how heavy they are. Children compare objects directly and see how bending, cutting, stretching and squishing change an object.

Texas Essential Knowledge and Skills (TEKS) teks student expectation: 1.6(A) · comparing objects as larger or smaller and heavier or lighter

How we explain it

Children can open this short lesson before they practice.

  1. Length tells how long a thing is.
  2. Area is how much flat space it covers.
  3. Weight tells how heavy it is.

Example: Which is heavier: a rock or a leaf? A leaf floats in the wind. A rock is hard to lift. Answer: a rock

Length, Area & Weight in Texas

In the Texas Essential Knowledge and Skills (TEKS), this is unit 1 of 11 in 1st grade Science, before Objects & Structures.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: Texas Education Agency (TEA)

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    You fold a piece of paper in half. It is still…

    📄
    • paper
    • cloth
    • a rock

  2. Question 2

    Which action can make a tower of blocks taller?

    🧱
    • tipping it over
    • taking blocks away
    • adding more blocks

  3. Question 3

    Weight tells us how…

    ⚖️
    • tall something is
    • heavy something is
    • loud something is

  4. Question 4

    You cut a ribbon in two. Each piece is…

    🎀
    • the same as before
    • shorter than before
    • longer than before

  5. Question 5

    You stretch an elastic band. What happens to its length?

    🪢
    • it turns heavy
    • it gets shorter
    • it gets longer

  6. Question 6

    To compare two lengths fairly, the objects should start…

    • far apart
    • at the same line
    • at different places

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