# Math Essentials

 TERM 1 TERM 1 3NBT1:  round numbers using place value 3NBT2:  fluently add & subtract within 1000 3OA8:  solve two-step word problems using two operations (+/-) 3OA1:  interpret products of whole numbers 3MD5:  understand concepts of area 3MD6:  measure area by counting unit squares 3MD7: relate area to the operations of multiplication & addition 3NBT3: multiply one-digit whole numbers by multiples of ten 3OA9:  identify arithmetic patterns and explain using properties of operations 3OA8: solve two-step word problems using three operations (+/-/x) 3MD7c: use tiling to show the distributive property in finding area 3MD7d:  recognize area as additive in real world problems 3MD8: solve real world perimeter problems TERM 3 TERM 4 3OA2:  interpret whole-number quotients of whole numbers 3NF1: understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts 3NF3: explain equivalence of fractions & compare fractions 3NF2a: represent a fraction on a number line by defining intervals 3NF2b: represent a fraction on a number line by marking lengths 3OA4: determine unknowns in a multiplication or division equation 3OA5: apply properties of operations to multiply and divide 3OA6: recognize divison as an unknown-factor problem 3G2: partition shapes into equal areas, express as unit fractions 3OA7: fluently multiply & divid to 100 3OA3: use multiplication & division within 100 to solve word problems 3G1: understand shapes in different categories may share attributes & shared attributes can define a larger category 3OA8:  solve two-step word problems using the four operations 3MD1:  tell and write time in minutes, + and - time in minutes 3MD2: metric measure of g, kg, l, in one step problems 3MD4: measure lengths using rulers marked 1/2 & 1/4, show on a line plot