4th Grade Math Unit 2
Place Value and Addition/Subtraction of Decimals
20 Instructional Days - 1st and 2nd 6 Weeks
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Big Idea:
Understanding decimal relationships.
Student Expectations:
Priority TEKS
4.4(A) [Readiness] add and subtract whole numbers and decimals to the hundredths place using the standard algorithm
Focus TEKS
4.2(B) [Readiness] represent the value of the digit in whole numbers through 1,000,000,000 and decimals to the hundredths using expanded notation and numerals
4.2(E) [Supporting] represent decimals, including, tenths and hundredths, using concrete and visual models and money
4.2(F) [Supporting] compare and order decimals using concrete and visual models to the hundredths
4.2(G) [Readiness] relate decimals to fractions that name tenths and hundredths
4.2(H) [Supporting] determine the corresponding decimal to the tenths or hundredths place of a specified point on a number line
4.3(G) [Supporting] represent fractions and decimals to the tenths or hundredths as distances from zero on a number line
Ongoing TEKS
4.4(A) [Readiness] add and subtract whole numbers and decimals to the hundredths place using the standard algorithm
4.1(A) apply mathematics to problems arising in everyday life, society, and the workplace;
4.1(B) use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution;
4.1(C) select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems;
Student Learning Targets:
- I will represent decimals using base ten blocks and money.
- I will identify a given decimal on a number line.
- I will compare decimals using comparison symbols.
- I will order decimals from least to greatest and greatest to least.
- I will identify a decimal when given the fraction and a fraction when given the decimal.
- I will represent the value of a decimal using expanded notation and numerals.
- I will add and subtract decimals to the hundredths place using the algorithm.
Essential Questions:
- What is the relationship between a decimal and a whole number?
- How can you represent a decimal in a variety of ways?
- Explain the relationship between the tenths and hundredths place.
Extra Information:
Adopted Textbook: Pearson - enVision Math
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