lesson
Three-Number Word Problems With a Missing Number
Solve word problems involving three numbers within 20 where one of the numbers is unknown.
Updated 1 month ago · 6 views
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Word Problems With Unknowns in Any Position
7 lessons
Goal
Represent and solve addition and subtraction word problems within 20 where any number may be unknown.
7 lessons
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- Take-From Word Problems (Result Unknown)Not started yet
- Take-From Word Problems (Change Unknown)Not started yet
- Take-From Word Problems (Start Unknown)Not started yet
- Finding the Unknown in Addition EquationsNot started yet
- Finding the Unknown in Subtraction EquationsNot started yet
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Learning standards covered
111.3(b)(5)(D)Texas Essential Knowledge and Skills (TEKS) · Math · 1st Graderepresent word problems involving addition and subtraction of whole numbers up to 20 using concrete and pictorial models and number sentences;
Open Global Standard:OGM.2.OA.5
111.3(b)(5)(F)Texas Essential Knowledge and Skills (TEKS) · Math · 1st Gradedetermine the unknown whole number in an addition or subtraction equation when the unknown may be any one of the three or four terms in the equation; and
Open Global Standard:OGM.2.OA.4
111.3(b)(1)(A)Texas Essential Knowledge and Skills (TEKS) · Math · 1st Gradeapply mathematics to problems arising in everyday life, society, and the workplace;
Open Global Standard:OGM.2.MP.1
111.3(b)(1)(B)Texas Essential Knowledge and Skills (TEKS) · Math · 1st Gradeuse 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;
Open Global Standard:OGM.2.MP.1
OGM.2.OA.5OGM.2.OA.4OGM.2.MP.1