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Free Math Worksheet Grade 3 (Year 4)
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Countdown to Christmas: December Calendar Math

About This Resource

A free Grade 3 math worksheet on using a calendar during the December countdown: days of the week, months of the year, counting on in weeks to find dates, working out how many days are left until a date, finding the day of the week after a number of days and converting weeks to days. Includes a timed lesson plan, a six-activity worksheet with 26 questions, an editable Word version and answer key.

Overview

Children use a December calendar to answer real countdown questions. They learn that a week has 7 days, that December is the twelfth month with 31 days, and that adding 7 to a date gives the same day of the week a week later. They find the day of the week for later dates, work out how many days are left until a holiday, find the day of the week after a number of days and convert weeks to days and days to hours. The activities build strong calendar and reasoning skills that children can use every month of the year.

Resource Details

Subject
Math
Topic
Christmas Calendar Math
Category
Time & Money
File Type
PDF
File Size
214.1 KB
Published
11 Nov 2026
Downloads
0
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Grade 3 math (ages 8–9) 45 minutes Calendar skills counting on subtraction time conversion reasoning

Student Task

  • Show a December calendar. Ask: "What day is December 1? How many days are in December?"
  • Do activities 1 and 2 together, counting on in sevens on the calendar.
  • Children complete activities 3 to 6. Answers are in the answer key.

Classroom Use

  • Class countdown: each morning a child crosses off a day and tells the class how many days are left until the winter break.
  • Calendar detective: give clues ("It is 2 weeks after December 3") and children find the date.
  • Birthday months: children line up in month order and say the month number.

Differentiation

Support: give a printed calendar to count on. Challenge: children work out what day of the week January 1 will be if December 31 is a Thursday, and plan a 10-day holiday countdown.

Answer Key & Assessment

Activities 1 to 5 check calendar facts, date reasoning and conversions (answer key included). Activity 6 shows whether children can explain their reasoning.

Learning Objectives

  • Use the days of the week and months of the year in order.
  • Use a calendar to find dates and count the days between two dates.
  • Convert between weeks, days and hours.

Teacher Tips

Show the trick that the same day of the week repeats every 7 days, so December 1, 8, 15, 22 and 29 are all the same day. When counting days between dates, remind children to subtract the dates rather than count both ends.

What's Included

  • 6-page printable PDF lesson pack: teacher lesson plan with timings, materials and differentiation
  • Key vocabulary list (6 words with meanings and examples)
  • Student worksheet (6 activities)
  • Editable Word version of the worksheet
  • Complete answer key (also as a separate PDF)

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