Lesson 3.5 · Practice and exercise
Hua's Classroom for Shanghai Maths — One Lesson One Exercise (English edition, pages 55–57).
Lesson Alignment
How this Shanghai Maths lesson connects to learning goals, Common Core, and Eureka Math.
Learning Objectives
Students will be able to:
- 01Recall month lengths, quarters, and leap-year rules.
- 02Read monthly calendars to answer date/weekday questions.
- 03Solve multi-step application problems.
- 04Connect calendar facts with ×÷/+− fluency.
Common Core Standards
| Code | Standard (focus for this lesson) |
|---|---|
| 3.MD.A.1 | Time / calendar. |
| 3.OA.A.3 / D.8 | Word problems. |
| 3.OA.C.7 | *(related)* Fluency supporting applications. |
Eureka Math Correspondence
| Shanghai Maths | Focus | Eureka Math |
|---|---|---|
| Practice | Chapter consolidation | Calendar + ops |
| Applications | Money / seats | G3 M1 / M3 style |
Core Concepts
Practice and exercise — mixed review of Chapter 3 time and calendar skills.
Chapter Skills Review
- Big/small months; February in common vs leap year.
- Quarters and months in each quarter.
- Leap-year rule (÷4; century ÷400).
Reading Calendars
From a monthly grid: name the month, find Sundays, deduce the previous month’s last Sunday, etc.
Applications
- Average savings per month across quarters.
- Theatre seats (rows × seats + ground floor) — mixed ops with calendar unit.
Key Terms & Definitions (Reference)
Quick glossary for this lesson.
| Term | Definition |
|---|---|
| Practice and exercise | Mixed review lesson. |
| Monthly calendar | One-month grid of dates. |
Key Answers
Quick reference for this lesson’s exercise answers.
1. 12 mo; big/small lists; Feb 28/29; 4 quarters · Q3 Jul–Sep; leap ÷4 / centuries ÷400; hour hand 2 rounds/day; 2200 common Feb 28; 2020 = 366 = 52 w + 2 d; PRC 1 Oct 1949 · 76th (2025) · 100th 2049; father 29 Feb; June calendar: Sun 4th & 25th · prior last Sun 31 May.
2. 40 yuan/mo; 728 bikes; 905 kWh; 9684 sets; 638 seats; elder 180 m/min.
3. 40 episodes · 24 days.
4. 20 past 17 Beijing time on 25 May.