4th Grade Math Unit 1

Big Idea:

The place value of a digit determines its value.

Student Expectations:

Priority 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(C) [Supporting] compare and order whole numbers to 1,000,000,000 and represent comparisons using the symbols >, <, or =

4.2(D) [Supporting] round whole numbers to a given place value through the hundred thousands place

4.4(A) [Readiness] add and subtract whole numbers and decimals to the hundredths place using the standard algorithm

Focus TEKS

4.2(A) [Supporting] interpret the value of each place-value position as 10 times the position to the right and as one-tenth of the value of the place to its left

4.4(G) [Supporting] round to the nearest 10, 100, or 1,000 or use compatible numbers to estimate solutions involving whole numbers

Ongoing TEKS

4.1(A) [Tools to Know] apply mathematics to problems arising in everyday life, society, and the workplace;

4.1(B) [Tools to Know] 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) [Tools to Know] 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;

4.1(F) [Ways to Show] analyze mathematical relationships to connect and communicate mathematical ideas; and

4.1(G) [Ways to Show] display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication.

Student Learning Targets:

• I will compare whole numbers using comparison symbols.
• I will order whole numbers from least to greatest and greatest to least.
• I will identify the value of a digit in a given number in numerals.
• I will represent the value of a digit in a given number in expanded form.
• I will represent the value of a digit in a given number in expanded notation.
• I will add whole numbers using the algorithm.
• I will subtract whole numbers using the algorithm.
• I will round whole numbers to a given place value.
• I will interpret the value of the place to the left or right of a digit.
• I will round using compatible numbers to estimate addition and subtraction of whole numbers.

Essential Questions:

• What strategies can be used to compare whole numbers?
• How can you identify the value of a digit?
• Describe the process of adding and subtracting whole numbers with at least six digits.
• Give a real life example of when rounding would be beneficial.
• How can you evaluate if a solution is reasonable?

Extra Information:

Adopted Textbook: Pearson - enVision Math

District Grading Policy

Texas Gateway Online Resource Center