Decimals - Activity: Tenths and Hundredths Activity - Presentation

In today's lesson, students will explore the concepts of tenths and hundredths, which are parts of a whole and are therefore less than one. The lesson begins with a discussion prompt, asking whether tenths and hundredths are greater or less than one. Through a series of activities, learners are shown that 1,000 is comprised of 10 hundreds, 100 is made up of 10 tens, and 10 consists of 10 ones. The lesson then delves into the idea that a single whole can be divided into ten equal parts, making each part one tenth (1/10), and in turn, each tenth can be divided again into ten equal parts to form hundredths (1/100). This concept is visually represented to reinforce the understanding that one whole is equivalent to ten tenths or one hundred hundredths.

Continuing with the decimal theme, the second activity involves dividing one whole into ten equal parts and shading specific fractions to represent tenths. Students are encouraged to identify the fraction of the whole that is shaded, with examples ranging from one tenth (1/10) to six tenths (6/10). The activity is extended to show that one whole can also be divided horizontally into ten equal parts, and then further into a grid of one hundred squares, to illustrate hundredths. Learners are tasked with shading in various amounts of these squares and determining the fraction represented by the shaded area. To conclude, they are prompted to consider if there's an easier method to count the shaded parts and to distinguish between when they are working with tenths or hundredths.