How can I find the area of a rectangle using the formula (length x width)?
How can I apply what they learned in the previous chapter to decompose figures into squares and or rectangles, and to find unknown side lengths in figures?
Content:
Students will know and understand:
Length
Width
Composite figures
Skills:
Students Will:
Estimate the area of a rectangle by counting grid squares.
Find the area of a rectangle by using a formula.
Solve problems involving the area and perimeter of squares and rectangles.
Find the perimeter and area of a composite figure.
Solve real world problems involving estimating area of figures.
Solve real world problems involving area and perimeter of composite figures.
4.OA.A.3. Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
4.NBT.B.4. Fluently add and subtract multi-digit whole numbers using the standard algorithm.
4.MD.A.1. Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz.; l, ml; hr, min, sec. Within a single system of measurement, express measurements in a larger unit in terms of a smaller unit. Record measurement equivalents in a two-column table.
4.MD.A.2. Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit. Represent measurement quantities using diagrams such as number line diagrams that feature a measurement scale.
4.MD.A.3. Apply the area and perimeter formulas for rectangles in real world and mathematical problems.
MP.1. Make sense of problems and persevere in solving them.
MP.2. Reason abstractly and quantitatively.
MP.3. Construct viable arguments and critique the reasoning of others.
MP.4. Model with mathematics.
MP.5. Use appropriate tools strategically.
MP.6. Attend to precision.
MP.7. Look for and make use of structure.
MP.8. Look for and express regularity in repeated reasoning