Students explore how to describe and classify different types of materials based on observable properties. They learn how heating and cooling can cause changes to solids and liquids, and that sometimes these changes are reversible, and sometimes they are not.
Students explore how pushes and pulls can cause objects to move, speed up, slow down, or change direction. Students learn the properties of solids and liquids, and how temperature can change this.
This unit serves as a bridge from problem solving within 10 to work within 100 as students begin to solve addition and subtraction problems involving teen numbers. In unit 1, students were encouraged to move beyond the beginning strategy of counting all to the more efficient counting on. Now, they go beyond that level to decomposition and composition strategies, informally called make ten or take from ten. Students will work on the concept of addition and subtraction within 20 and focus on building fluency within 10. Mastery of facts is not expected at this point in the year. They will develop an understanding of ten as a unit to analyze teens as ten and some ones and use modalities to build individual numbers with tens/ones while counting. Students will compare two two-digit numbers using symbols (<,>,=).
Four Operations with Decimals: Students will deepen their understanding of decimals as they work with decimals to the thousandths place. Students will extend their strategies for computing with whole numbers to add, subtract, multiply, and divide decimals.
Students will study the first humans through the Neolithic Revolution in the Eastern Hemisphere. The unit builds on the geographic themes of Unit 1 and students will gather evidence about a group of people and how they lived at a particular time making judgments about the Neolithic Revolution’s technological advances in agriculture and domestication of animals. In this unit students will develop skills to gather, interpret and use evidence and use chronological and geographic reasoning.
Students will investigate how industrialization and immigration contributed to the urbanization of America. Students will study industrialization and the increased demand for labor leading to migration to cities and increased immigration to the United States. Students will investigate challenges and progressions that came with this industrialization period including population density, diversity, poor working conditions as well as social, cultural, and economic lives of people and conflicts over immigration. In addition, students will also have the opportunity to investigate women’s rights and the suffrage movement that spurred the creation of government reform policies.
Students explore what plants and animals need to live, grow and thrive. They learn how plants and animals depend on each other, and how humans can impact the environment they live in.
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Building on their knowledge of sequencing and organization, students will now engage with informational texts to determine topics, central ideas, and key details. Students will write an informative response to a text that provides a clear topic and key facts or details.
In this unit students will learn to use their number sense to compare (using symbols >, =, and <.) and order values of two two-digit numbers. They will model, write and solve addition and subtraction equations within 100 including composing new tens when necessary when adding. The students will apply mental math strategies when adding and subtracting multiples of ten.
