microworlds pacing guide（皮姆踱步指南）.doc

Liquids and Solids Pacing Guide1 Use the information below to assist you in determining the amount of time needed to complete the entire unit. These recommendations assume the average science class period is 45-60 minutes in length. We recommend teaching science a minimum of three sessions per week in order to maintain consistency and keep students engaged. Many teachers accomplish this by rotating a science unit with a social studies unit, enabling you to teach more science sessions in one week and finish the unit in fewer weeks. While we highly recommend that all teachers participate in the Expository Writing and Science Notebook Program in order to more fully develop students’ science understandings and writing skills, the below recommendations do not include time for implementing the science writing curriculum. Lesson and Common Assessments (See corresponding lesson in Instructional Guide for lesson planning) Recommended Number of Periods Standards Addressed/Concept(s) of Lesson Considerations for Planning Recommended Applications and Extensions Liquids Lesson 1: Liquids Around Us. Preassessment Students make a web of their knowledge of liquids. 1 The purpose of this lesson is to engage students and access their prior knowledge. There is no specific standard addressed. The teacher Background information on pages 253-262 in the teacher’s manual is very helpful. Purchase or ask students to bring in corn oil and corn syrup NO OIL OR SYRUP should go into SMC jars. Begin collecting clear, unbreakable jars with lids and a number of objects that can be used for the float and sink investigations. Note: Wait to read the book, Solids and Liquids (16 copies in the kit) until indicated in the Solids Lessons S1-S5. Ask students to bring empty jars and one jar containing a safe liquid. Observe the safe liquid and use for 20 Questions game. This game can be played throughout the unit. Liquids Lesson 2: Find Out What You Can. Students observe three