iCoachMath
STEM Excellence Series: Empowering the Next Generation
FIRST
FirstVideo Examples:Math Addition Lesson for 1st Grade
Definition Of First
An ordinal number that shows the beginning number of a set is called First.
More About First
'First' is also written as "1st".
Video Examples:Math Addition Lesson for 1st Grade
Example of First
Consider the set of vowels, V = {a, e, i, o, u}. This set starts with the letter `a`, so `a` is the First element of the set V.
Solved Example on First
Ques: Find the first number of the set given below.
Choices:
A. 18
B. 5
C. 8
D. 15
Correct Answer: A
Solution:
Step 1: An ordinal number that shows the beginning number of a set is called First.
Step 2: In the given set, 18 is the first number.
Quick Summary
- 'First' indicates the initial position in a sequence.
- Represented as 1st.
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🍎 Teacher Insights
Use real-world examples like lining up students or ordering objects to illustrate the concept of 'first'.🎓 Prerequisites
- Counting
- Identifying Numbers
Check Your Knowledge
Q1: Which comes first in the following set: 5, 18, 8, 15?
Frequently Asked Questions
Q: What does 'first' mean?
A: It means the very beginning or the number one in a series.