lesson plan(making triangle): using cuisenaire rods

My lesson plan is to make triangle by using cuisenaire rods that is taken from the CD.In this lesson the students will find out to make different triangle by using differents rods. Students need to specify how to connect the edges of the rods. the special technique is that the two rods can be pushed down or lie down but can not be overlapped. Students need to find out any three rods is aable to construct a trangle? what is the reason for possible answre? student need to make a list of the combinations of rods that make triangle and other combination that don't make triangle. students need to explore of the properties of triangle like the lengths of two sides of a triangle are greater than the third side. students will ask to findout equuilateral triangle(all sides are equal), isosceles triangle(two sides are equal), scalene triangle(no sides are equal). finally student will ask to find any pattern is present in this process there.