Rainforest Maths - tons of great math resources for grades K-6. The interface of the whole site is also colorful,
inviting and age-appropriate. Also, many of the activities/exercises include assorted visuals, and there is a good variety of questions within each topic.
Numbers & Operations Accomplishments
| 1.1.1 | Understand numbers, ways of representing numbers, relationships among numbers, and number systems. |
|
a. |
count by twos, fives, and tens to 100; | |
b. |
count a group of objects by ones to 100; | |
c. |
count a group of objects by twos, fives, and tens up to 30; | |
d. |
count forward or backward by one beginning with any number less than 100; | |
e. |
recognize the place value of a digit in numbers to 99; | |
f. |
read and write numerals up to 100; | Hundreds Chart - Place the numbers in the correct spot. Numbers & Number Words - Match the numbers to the words. |
g. |
count by tens from any number using a hundred chart; | |
h. |
use manipulatives to model whole numbers to 99 (e.g., base-ten blocks, sticks, straws); | |
i. |
identify odd and even whole numbers to 50; | Odd & Even - Practice from Sadlier Oxford |
j. |
model halves and fourths of a single object or figure; | |
k. |
model halves and fourths of a set of objects; | |
l. |
match the spoken, written, concrete, and pictorial representations of 1/2 and 1/4; | Fractions - Sort the pictures into those showing 1/2, 1/4, and 1/3. |
m. |
recognize one whole as two halves or four fourths; | |
n. |
count the value of a set of coins up to fifty cents; | Count Coins - Count the coins. Count On from Dimes & Quarters - Practice counting coins. Trade for Dimes - Do the coins equal a dime? |
o. |
order whole numbers less than 100 | |
p. |
represent numbers in flexible ways using a variety of materials (e.g., 23 as 23 ones, 1 ten and 13 ones, and/or 2 tens and 3 ones); | Ways to Make Numbers - Represent the number in different ways. Number Names - Write the numbers in expanded form. |
q. |
apply the language of ordinal numbers up to twelfth; | Ordinal Numbers - Choose the correct place in line. Ordinals - Click on the correct bullseye. |
r. |
compare two numbers using the appropriate symbol (i.e., <, >, =); | Compare Numbers - Practice from Sadlier Oxford. |
s. |
use a number line or hundred grid to determine one more or one less than any number to 50. | |
| 1.1.2 | Understand meanings of operations and how they relate to one another. |
|
a. |
Explain the reasonableness of a solution; | |
b. |
Solve simple story problems involving addition and subtraction with numbers less than 20; | |
c. |
Develop story problems that illustrate basic addition and subtraction facts. | |
| 1.1.3 | Solve problems, compute fluently, and make reasonable estimates. |
|
a. |
Use words, actions, pictures, and manipulatives to solve problems; | Addition Facts to 12 - Use the manipulatives to solve the problem. Subtraction Facts to 12 - Use the manipulatives to solve the problem. Other Names for Numbers - Pick the two apples that add to the number on the sign. |
b. |
Use pictures or objects, such as ten frames, to show one more or one less than any number to 99; | |
c. |
Estimate the number of objects in a group and explain the reasoning for the estimate; | |
d. |
Explain and justify solutions and strategies in problem solving; | Pattern Machine - Beginning input/output machine. Related Addition & Subtraction - How do the facts relate to one another? |
e. |
Use a variety of strategies to add and subtract two-digit whole numbers (e.g., counting up or back, taking away, doubles plus one, comparison, number relationships, modeling) | Add Tens & Ones - Use virtual manipulatives to add the ones & the tens. Subtract Tens & Ones - Use virtual manipulatives to subtract the ones & the tens. |
f. |
Use calculators in problem-solving situations. | |
Algebra Accomplishments
| 1.2.1 | Sort and classify objects by size, number, and other properties.
|
|
a. |
sort objects by two attributes; | |
b. |
describe how objects in a group are alike and how they are different. | Venn Diagrams - Sort the objects. |
| 1.2.2 | Represent and analyze patterns and functions. |
|
a. |
identify and describe growing patterns found in literature, in the environment, in physical arrangements, and in pictures; | |
b. |
translate a repeating pattern from one medium to another (e.g., red-blue-blue to snap-clap-clap); | |
c. |
create, describe, and extend concrete, visual, auditory, and number patterns; | |
d. |
identify the unit of a two-part repeating pattern. | |
| 1.2.3 | Use concrete, pictorial, and verbal representations to develop an understanding of the language and symbols of mathematics. |
|
a. |
use manipulatives to demonstrate addition and subtraction sentences written symbolically involving numbers 0-20; | More Fact Families - Practice from Sadlier Oxford. |
b. |
communicate and use mathematical terms and symbols appropriately; | |
c. |
interpret and solve simple open addition sentences. | Sums to 18 - Challenges you to solve the number puzzle. |
| 1.2.4 | Illustrate general properties of operations. |
|
a. |
apply the commutative property of addition. | |
| 1.2.5 | Analyze change in various contexts |
Geometry Accomplishments
| 1.3.1 | Analyze characteristics and properties of geometric shapes. |
|
a. |
recognize basic properties of and similarities and differences between simple geometric figures (e.g., number of sides, corners); | |
b. |
predict and describe the results of putting together and taking apart two- and three-dimensional geometric figures. | |
| 1.3.2 | Specify locations and describe spatial relationships. |
|
a. |
uses directional terms in a variety of situations (e.g., over, under, forward, backward, between, right, left); | |
b. |
apply spatial sense to create a figure from memory; | |
c. |
identify the position of a whole number on the number line. | |
| 1.3.3 | Recognize and apply flips, slides, and turns. | Same Size & Shape - Find the objects that are the same. |
Numbers & Operations Accomplishments
| 1.4.1 | Demonstrate understanding of units of measure and measurable attributes of objects. |
|
a. |
compare and order objects according to length, capacity, and weight; | |
b. |
recognize the need for standard units of measurement. | |
| 1.4.2 | Apply appropriate techniques and tools to determine measurements. |
|
a. |
demonstrate understanding of the concept of length; | |
b. |
measure and estimate length using a variety of non-standard units; | |
c. |
measure to the nearest inch or centimeter; | |
d. |
measure weight to nearest pound or kilogram; | |
e. |
recognize a calendar is a way of measuring time; | Yesterday, Today, Tomorrow - Use the calendar to click on yesterday & tomorrow. |
f. |
describe the relationship between days and months; | |
g. |
read and write time to the hour and half-hour; | Tell Time with Kat - Students can set the hands, then click to see the time. |
h. |
compare units of time; | |
i. |
use a thermometer to measure temperature. |
Data Analysis Accomplishments
| 1.5.1 | Develop, select, and use appropriate methods to collect, organize, display, and analyze data. |
|
a. |
represent and interpret data using concrete objects, pictures, pictographs, and bar graphs. | Pictographs - Tutorial Pictographs - Make a pictograph to match the Tally Chart. |
| 1.5.2 | Apply the basic concepts of probability. | |
a. |
describe events related to students’ experiences as likely or unlikely. | Certain, Possible, or Impossible - Tutorial More, Less, or Equally Likely - Paint the spinner to match the directions. |