Know Your Place Values
Students will be able to identify place values up to ten million.
- Begin the Know Your Place slideshow. Briefly go over the place values on slide 1, then go on to slide 2.
- Divide students into equal groups, and hand each group a set of Place Value Card Sort strips.
- Give groups five minutes to organise their cards into the correct order.
- Allow volunteers to come up to the board and manipulate the images on the slide. Each time a student makes an incorrect arrangement, reveal a hint—e.g. the Millions cards belong on the far left.
- Keep going until the cards are placed in the correct order.
- Explain that the cards the class just ordered are Place values, or positions that digits have within a number. The Decimal placeIs where the decimal point goes; it marks the boundary between units (ones place numbers) from decimals (numbers smaller than 1).
- Have students watch the Finding a Number’s Place ValueVideo.
- Conduct a quick Q&A session after the video to make sure students are up to speed.
Explicit Instruction/Teacher modeling(20 minutes)
- Go over slides 4-12 and review the different place value positions.
- Ensure that students understand that a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.
Guided practise(20 minutes)
- Make sure students are still sitting with their groups, and distribute a copy of the Place Value Puzzle 1 worksheet to each group.
- Work through questions 1-3 as a class, using the board to show work.
- Allot about 10 minutes for students to complete the rest of the worksheet with their group members.
- Once all groups are finished, go over the answers. Allow volunteers who arrived at the correct answer for each question to come up to the board and demonstrate their work.
Independent working time(25 minutes)
- Distribute copies of the Place Value Puzzle 2 worksheet, and have each student complete it independently.
- Go over the answers once time is up.
- Enrichment:When looking for volunteers to demonstrate their work, choose students who have a firm grasp on the lesson content. This will challenge them to not only understand problems involving place value, but also be able to explain solutions to those problems in their own words.
- Support:Struggling students can be given one-on-one assistance during Independent Working Time.
- Display slide 13, then distribute a copy of the summative assessment to each student.
- Have students complete their assessments independently.
- Collect the two worksheets and assessment from each student. Review them later to assess student comprehension of the lesson content.
Review and closing(15 minutes)
- Display slide 14. Call out the numbers in random order, and ask students to identify the place value of each one.
- Have students return to their original groups and revisit their Place Value Card Sort strips.
- Give each group about five minutes to check the order of their strips and change it if needed.
- Go on to slide 15 and review the correct order.