![]() So, using this freedom let's pick (-2,2) which is on the left side of the line. You have the freedom to pick any point you can and just check if this inequality holds. I think the easiest way at least for me is to simply pick a coordinate from any side of the line. This helps students connect the symbols and mathematical vocabulary terms with the visual aid of the Dot Method.Let's say you have an equation for an inequality, for instance y < 4x+3.ĭraw the line on the graph (you can use the video of the graph since its the same equation except I'm using a less than instead of less than or equal to). When introducing the Dot Method, start by giving students a visual of this strategy with a comparing numbers anchor chart. Comparing Numbers Anchor Chart for Teaching the Dot Method We want students to be able to explain their thinking using place value to express which number is greater.įor example, if comparing 316 and 524, students will look at the hundreds place and express that the 3 stands for 300 in 316 and the 5 stands for 500 in 524, which means 524 is larger. ![]() ![]() When practicing this skill, ask your students which place value within the numbers they are going to look at first to determine which number is larger. The Dot Method helps students prevent confusion on which direction the symbols should face to match the appropriate vocabulary term.
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