Place value - Rounding to 10, 100 or 1,000 - Starter

In a Year 5 mathematics lesson, students are introduced to the concept of rounding numbers to the nearest 10, 100, or 1,000. The session begins with a warm-up exercise where students are tasked with performing basic addition, such as calculating the sum of 304 and 121. This is followed by a 'Fluent in Four' revision section, designed to consolidate students' understanding of place value and addition by asking them to add together numbers represented in terms of ones and tens. For example, they might combine 3 ones and 14 tens with 4 tens and 12 ones to find the total.

The lesson continues with a series of conversion and rounding exercises. Students are asked to round numbers like LXXV (75 in Roman numerals) to the nearest 100 and to answer questions that test their knowledge of time, such as converting hours to minutes and vice versa. They also work on subtraction problems involving time, like finding the difference in minutes when seven hours are subtracted by 244 minutes. Additionally, the lesson includes a problem-solving task where students must determine which of a given set of shapes covers the largest surface area. This multifaceted approach to the lesson ensures that students practice a variety of mathematical skills, including addition, conversion, rounding, and problem-solving related to measurements and geometry.