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Long, short, thick, thin
Joyful Mathematics: Chapter 7
GoalCompare lengths and say which things are long, short, thick or thin.
New words
long · a big distance from end to endthick · wide across, not thinthin · not wide across
Explanation
Long and short tell us about length. A ladder is long. A key is short. Thick and thin tell us how wide a thing is across. A log is thick. A pencil is thin. A thing can be long and thin, like a string. A thing can be short and thick, like a stool.
Worked examples
The long crayon is longer than the short crayon.
A pile of books is thick. One sheet of paper is thin.
Hold a long pencil and a short crayon. Which is longer? Which is thicker?
Class activity
Line up and sort. Collect five things from home, such as a spoon, a pencil, a comb, a book and a cup. Put them in a row with one end on the same line. Find the longest and the shortest. Then find the thickest and the thinnest.
Practice
1
Which is longer, the ladder or the key?
The ladder.
2
Which is longer, the train or the bicycle?
The train.
3
Which is thicker, a rope or a thread?
The rope.
4
Which is thinner, a tree trunk or a stick?
The stick.
5
Tell a grown-up one thing that is long and one thing that is short.
Any correct things, for example a snake is long and a seed is short.