ICSE · Grade 1
Ch. 1: Numbers 1 to 20
Count, read, write and compare numbers 1–20 with an animated counting lab.
Count objects to 20
Read number names
Compare more and less
Order numbers
Learn
Concepts
EN Translate
Real Life
Story Mode
Analogy
Visual
Exam Tips
Model Answers
Quiz
AI Tutor
Mastered
🔢 Grade 1 · Maths
Numbers Lab — 1 to 20
Count · name · compare bigger and smaller
Tap a number!
1
one
5
five
10
ten
15
fifteen
20
twenty
0 is zero — nothing to count!
🍎🍎🍎
3
vs
🍎🍎🍎🍎🍎🍎🍎🍎
8
Bigger!
Bigger has more. Smaller has less. 8 is bigger than 3.
# Number sense
## Count carefully
Touch each object once — do not skip or double-count.
## Before and after
What comes **after** 9? **10**. What comes **before** 15? **14**.
## Compare
8 apples vs 3 apples → 8 is bigger.
## Zero
0 is a number that means none.
Topics in this chapter
-
Counting
One-to-one count of objects.…
-
Number names
1 one · 10 ten · 20 twenty…
-
Compare
Bigger has more; smaller has less.…
-
Zero
0 means nothing to count.…
Philosophy check
- What is this civilization?
- Why was it advanced?
- How did cities work?
- Where do we still see these ideas?
- Exams — what will be asked?