Cogito
Grade 1 Math · Chapter 7 · Lesson 6
Greater Than, Less Than, Equal To
Write your comparison using a symbol.
10 problems · about 11 minutes · 1.NBT.B.3
What this lesson teaches
The child records a comparison of two two-digit numbers using the symbols greater than, less than, and equal to.
- > means is greater than.
- < means is less than.
- = means is equal to.
- Read the whole sentence out loud to check it.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
5 problemsReview — Which Is More?: Which is greater, 30 or 27?
Answer 30
Why 30 has 3 tens. 27 has 2 tens.
Review — Many Ways to Show a Number: 2 tens and 16 ones is which number?
Answer 36
Why 20 and 16 is 36.
Review — Multiples of Ten: Three tens is which number?
Answer 30
Why Three tens is 30.
Review — Tens and Ones on a Mat: How many tens are in 31?
Answer 3
Why 31 is 3 tens and 1 one.
Review — Counting Beyond 20: What comes right after 20?
Answer 21
Why After 20 comes 21.
Warm Up
Straightforward practice. Get the method working first.
3 problemsWhat does < mean?
Answer Is less than.
Why < means is less than.
Which symbol makes this true: 24 ? 27
Answer <
Why 24 is less than 27.
Which symbol makes this true: 29 ? 31
Answer <
Why 29 has 2 tens. 31 has 3 tens.
Build It Up
The same ideas with more to keep track of.
1 problemWhich symbol makes this true: 38 ? 34
Answer >
Why The tens tie. Look at the ones.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
1 problemReading a Sentence: Which symbol makes this true: 35 ? 35
Answer =
Why 35 is equal to 35.