Learning Intention:
We are learning to read, write, compare and order decimals to thousandths.
Success Criteria:
- I can understand and represent decimal fractions.
- I can write and convert equivalent fractions, decimals and mixed numbers.
This week in maths, we explored how decimal fractions help us describe parts of a whole in a clear and useful way. We learned that fractions and decimals are closely connected; for example, 2/100 = 0.02, and we used place value blocks, place value charts, patterns, and number lines to show what these numbers look like. This helped us see that decimals are not just numbers on a page — they represent real amounts that we use in everyday life.
Our daily practice helped us build confidence with rounding decimal numbers to three decimal places. By working with numbers such as 50.284, we learned how to round to the nearest tenth, hundredth, and thousandth by checking the digit to the right. This strengthened our understanding of place value and showed us that rounding is a useful strategy for making sense of numbers in contexts such as money, sport, measurement, and the media.
We also zoomed in on thousandths, using examples such as 0.004, 0.023, and 0.07. Students represented these decimals with materials, matched them to fractions, and placed them on number lines to compare their size. Some students worked independently, some with teacher support, and others extended their thinking by solving extra challenges.
To connect our learning to the real world, we used the Get Your Share activity, which introduced us to New Zealand share prices written to three decimal places. This gave us a chance to compare and order decimals in an authentic context. A quick strategy we used was to line up the decimal points and compare each place value column from left to right: ones, tenths, hundredths, then thousandths. When working out the cost of 10 shares, we noticed that multiplying by 10 moves the decimal point one place to the right. For example, 0.019 × 10 = 0.19, so 10 shares would cost 19 cents. This helped us apply our learning in a practical and meaningful way.
Through these activities, we are becoming more confident at reading, writing, comparing, and ordering decimals to thousandths and at making connections between fractions, decimals, and real-life situations.