Lesson · Kindergarten · Mathematics
Longer or Shorter? Line Things Up at the Same End
- Kindergarten
- Mathematics
- 1 min
- British Columbia
- BCK-MA-13
Two pencils lie on a desk with their ends apart, so the shorter red one seems to reach further. When both erasers are slid to the same line, the blue pencil clearly goes further (longer, shorter). The same idea then compares a flower standing on books with one on the floor (taller, shorter) and two stacked gifts (wider, narrower), and ends on the recap "Line up the same end first."
Concept: Longer or shorter: line things up at the same end
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In one sentence
The question this lesson answers
Which pencil is longer, the red or the blue?
The red one sticks out more. But the ends are not lined up.
Transcript
What the lesson says
Which pencil is longer, the red or the blue?
The red one sticks out more. But the ends are not lined up.
Line them up at the same end.
Now look at the other end.
The blue pencil is longer. The red one is shorter.
Which flower is taller, the yellow or the pink?
The pink one is on books. Stand both on the floor.
The yellow flower is taller. The pink one is shorter.
Which gift is wider, the green or the purple?
Stack them and line up the same side.
The green gift is wider. The purple one is narrower.
Longer, taller or wider? Line up the same end first.
Curriculum
Where this fits
- British Columbia, Kindergarten
Mathematics, Geometry and measurement: direct comparative measurement (e.g., linear, mass, capacity)BCK-MA-13
Next: Heavier or Lighter? The Big Balloon and the Small Rock
The outcomes and strands follow the British Columbia curriculum.
Keep going
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Grade 4 · 1 min 12 s
1 min 26 s3D Objects: Faces, Edges and Vertices
Grade 3 · 1 min 26 s
1 min 21 sArea and Perimeter: What Is the Difference?
Grade 5 · 1 min 21 s
1 min 5 sArea of a Circle from the Radius or the Diameter
Grade 7 · 1 min 5 s
1 min 14 sArea of a Parallelogram: Cut and Slide into a Rectangle
Grade 6 · 1 min 14 s
1 min 18 sArea of a Rectangle: Count the Squares, Then Multiply
Grade 5 · 1 min 18 s
1 min 16 sArea of a Trapezoid: Two Copies Make a Parallelogram
Grade 6 · 1 min 16 s
1 min 19 sArea of a Triangle: Half of a Parallelogram
Grade 6 · 1 min 19 s
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