![]() Thus, the missing digits in the first lattice form the product of and (). ![]() The pair of digits in each cell names the product of two digits outside the lattice one above the cell of the lattice and the other to the right of the cell of the lattice. Teaching the Lesson Math Message Follow-Up WHOLE-CLASS DISCUSSION Students share answers. Challenge students to find a way to solve mentally. Students indicate thumbs-up if they agree with the solution. Math Message What do you think the missing digits are Study Link Follow-Up Ask volunteers to write solutions on the board. They transfer appropriate triangles to the OK pile and color the OK facts in the table on journal page, fasten their new piles with paper clips, and store them. LessonĢ Getting Started Mental Math and Reflexes Students use their Multiplication/Division Fact Triangles to practice the facts in the Try Again pile. ) Multiplication/Division Facts Table scissors chart paper colored pencils and markers Technology Assessment Management System Math Masters, page See the itlg. ELL SUPPORT Students make posters to display multiplication algorithms. ENRICHMENT Students investigate Napier s Rods, a seventeenth-century multiplication method. ![]() ) per partnership: each of number cards (from the Everything Math Deck, if available) materials READINESS Students explore patterns in the Fact Lattice. Ongoing Assessment: Recognizing Student Achievement Use Math Masters, page. Students practice and maintain skills through Math Boxes and Study Link activities. optional) º, / Fact Triangles index cards (optional) dictionary (optional) Ongoing Learning & Practice materials Students play Multiplication Top-It to practice basic multiplication facts. Study Link Teaching Aid Master (Math Masters, p. Key Vocabulary lattice lattice method (for multiplication) Math Journal, p. Use the lattice method to solve multiplication problems with - and -digit multipliers. Key Concepts and Skills Add single-digit numbers. They practice using this multiplication algorithm. Teaching the Lesson materials Key Activities Students review the lattice method for multiplication with - and -digit multipliers. 1 Objectives To review and provide practice with the lattice method for multiplication.
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