As we finish up the year, we are working on Eureka Modules 7 and 8. Here is what the modules entail.
Module 7: Problem Solving with Length, Money,
In Module 7, students represent and interpret categorical data by drawing both picture and bar graphs (2.MD.10). They have been practicing some of these skills already, as we have been conducting class-wide surveys, then organizing and interpreting the data. New in second grade is the use of line plots, which are graphs that display data as points above a number line:
In the line plot above, the Xs recorded above the numbers show us the number of occurrences a response appears in the data set. Here, four dogs each weigh 15 kg, one dog weighs 18 kg, two dogs weigh 20 kg each, and so on. The Xs represent the frequency of a particular response. Students will continue using line plots throughout elementary and beyond.
Module 8: Time, Shapes, and Fractions as Equal
Parts of Shapes
In the final Eureka Math module, students will consolidate their understanding of part–whole relationships using geometry. Just as the second graders have composed and decomposed numbers, now they will compose and decompose shapes, and begin to develop an understanding of unit fractions as equal parts of a whole.
In Topic A, students recognize and draw polygons with specific attributes: the number of sides, corners, and angles (2.G.1). They study the cube while focusing on its attributes, counting the number of edges, faces, and corners (2.G.1).
Student use tangrams in Topic B. A tangram is a set of seven shapes that can be put together to form a square and many other shapes.
Farther along in this topic, the students build and partition shapes by putting together two or more smaller shapes, while relating the parts to the whole. (2.G.3).
In Topic C, students start by decomposing circles and rectangles into equal parts and describing them as halves (a half of), thirds (a third of), and fourths (a fourth of) or quarters (2.G.3). Later, students will decompose a rectangle into four parts that have equal areas but different shapes (2.G.3).
In Topic D, students will apply their knowledge of partitioning the whole into halves and fourths to tell time (using both analog and digital clocks) to the nearest five minutes (2.G.3, 2.MD.7).