IXL Math - Illinois second-grade math standards

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Illinois

Skills available for Illinois second-grade math standards

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K-3.6 Demonstrate and apply a knowledge and sense of numbers, including numeration and operations (addition, subtraction, multiplication, division), patterns, ratios and proportions.

K-3.7 Estimate, make and use measurements of objects, quantities and relationships and determine acceptable levels of accuracy.

K-3.7.A Measure and compare quantities using appropriate units, instruments and methods.
K-3.7.A.1a Measure length, volume and weight/mass using rulers, scales and other appropriate measuring instruments in the customary and metric systems.
K-3.7.A.1b Measure units of time using appropriate instruments (e.g., calendars, clocks, watches-both analog and digital).
K-3.7.A.1c Identify and describe the relative values and relationships among coins and solve addition and subtraction problems using currency.
K-3.7.A.1d Read temperatures to the nearest degree from Celsius and Fahrenheit thermometers.
K-3.7.B Estimate measurements and determine acceptable levels of accuracy.
K-3.7.B.1a Given a problem, describe possible methods for estimating a given measure.
K-3.7.B.1b Compare estimated measures to actual measures taken with appropriate measuring instruments.
K-3.7.C Select and use appropriate technology, instruments and formulas to solve problems, interpret results and communicate findings.
K-3.7.C.1 Determine perimeter and area using concrete materials (e.g., geoboards, square tiles, grids, measurement instruments).

K-3.8 Use algebraic and analytical methods to identify and describe patterns and relationships in data, solve problems and predict results.

K-3.9 Use geometric methods to analyze, categorize and draw conclusions about points, lines, planes and space.

K-3.9.A Demonstrate and apply geometric concepts involving points, lines, planes and space.
K-3.9.A.1a Identify related two- and three-dimensional shapes including circle-sphere, square-cube, triangle-pyramid, rectangle-rectangular prism and their basic properties.
K-3.9.A.1b Draw two-dimensional shapes.
K-3.9.B Identify, describe, classify and compare relationships using points, lines, planes and solids.
K-3.9.B.1a Identify and describe characteristics, similarities and differences of geometric shapes.
K-3.9.B.1b Sort, classify and compare familiar shapes.
K-3.9.B.1c Identify lines of symmetry in simple figures and construct symmetrical figures using various concrete materials.
K-3.9.C Construct convincing arguments and proofs to solve problems.
K-3.9.C.1 Draw logical conclusions and communicate reasoning about simple geometric figures and patterns using concrete materials, diagrams and contemporary technology.

K-3.10 Collect, organize and analyze data using statistical methods; predict results; and interpret uncertainty using concepts of probability.

K-3.10.A Organize, describe and make predictions from existing data.
K-3.10.A.1a Organize and display data using pictures, tallies, tables, charts or bar graphs.
- Data and graphs: Record data using line graphs (Second grade - R.7)
- Graphs: Line graphs (Third grade - N.6)
K-3.10.A.1b Answer questions and make predictions based on given data.
K-3.10.B Formulate questions, design data collection methods, gather and analyze data and communicate findings.
K-3.10.B.1a Formulate questions of interest and design surveys or experiments to gather data.
- Data and graphs: Which bar graph is correct? (First grade - L.4)
K-3.10.B.1b Collect, organize and describe data using pictures, tallies, tables, charts or bar graphs.
K-3.10.B.1c Analyze data, draw conclusions and communicate the results.
K-3.10.C Determine, describe and apply the probabilities of events.
K-3.10.C.1a Describe the concept of probability in relationship to likelihood and chance.
K-3.10.C.1b Systematically list all possible outcomes of a simple one-stage experiment (e.g., the flip of one coin, the toss of one die, the spin of a spinner).
- Probability and statistics: Combinations (Third grade - S.4)