短除法簡介 | 3年級 |部門 |和 B 夫人一起學習數學。

Class Description
This interactive course helps learners develop confidence in short division, starting with 2-digit by 1-digit division and progressing to 3-digit numbers, including cases with remainders. Through engaging video lessons, scaffolded activities, independent practice, and problem-solving challenges, learners will build fluency and deepen their understanding of division.

What will be taught?
🐝 Use short division to divide 2-digit numbers by a 1-digit divisor.
🐝 Apply short division to 3-digit numbers, building fluency in the method.
🐝 Understand remainders and how to interpret them in division problems.

How is the class structured?
Each week includes:
🐝 A video lesson introducing the concept
🐝 A scaffolded activity for guided practise
🐝 An independent worksheet to apply skills
🐝 Problem-solving and reasoning challenges

Marking and Feedback
All completed work will be marked, with feedback provided to support understanding and progress.


Grade 3 Common Core Standards for Mathematics
📌 CCSS.MATH.CONTENT.3.OA.A.3
Solve word problems involving division within 100, using drawings and equations with symbols for unknown numbers.

📌 CCSS.MATH.CONTENT.3.OA.A.4
Determine the unknown whole number in multiplication or division equations relating three numbers.

📌 CCSS.MATH.CONTENT.3.OA.B.6
Understand division as an unknown-factor problem.

📌 CCSS.MATH.CONTENT.3.OA.C.7
Fluently divide within 100, using strategies such as the relationship between multiplication and division.