Cogito
Grade 1 Math · Chapter 6 · Lesson 7
Sorting and Showing Data
Put things into groups and build a graph.
10 problems · about 12 minutes · 1.MD.C.4
Figure — use these to answer the problems
Warm-Up Review
From earlier lessons. Loosen up before the new work.
7 problemsFrom “How Much Longer?”
A 9-cube stick and a 4-cube stick. How much longer is the first?
AnswerFrom “Why Same-Size Units?”
Why must you say which unit you used?
- Because a number alone does not say how long.
- Because it is polite.
From “Measuring With Cubes”
A stick takes 6 cubes laid end to end. How long is it?
AnswercubesFrom “Putting Three in Order”
Ropes are 3, 9 and 6 cubes. How long is the longest?
AnswerFrom “Using a Third Thing”
A rope is shorter than a string. The string is shorter than a pole. Is the rope shorter than the pole?
- Yes.
- No.
From “Longer Than, Shorter Than”
Why must you line up one end before comparing?
- Otherwise you cannot tell which is longer.
- To make it look neat.
From “True or False to Twenty”
Is 13 − 9 = 2 + 2 true?
- True. Both are 4.
- False.
Warm Up
Straightforward practice. Get the method working first.
2 problemsA graph shows 4 apples and 6 stars. How many in all?
AnswerOn a picture graph, what does a taller column mean?
- That group has more.
- The things are bigger.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
1 problemThe Fruit Bowl
A graph shows 5 apples and 3 stars. How many things in all?
Answerthings