Calculators in Classrooms
In a previous post in this blog, " Why So Many Elementary Students Aren’t Mastering Basic Math Facts ", Lynne Diligent wrote: ...Unfortunately, I am now running across a number of 14-year-olds who are using calculators to add 5 + 3, or 7 + 6, or 9 + 2. What’s even worse, THEIR TEACHERS LET THEM!!!! I personally think calculators should just be thrown out until about Grade 11, or whenever math involving higher functions on calculators is started. Prior to that time, they shouldn’t be allowed in school at all.... In one exam I wrote for General Chemistry, I asked the students to provide the number of ways by which I can distribute 10000 balls between two containers with one container having 9997 and the other the remaining 3 balls. The mathematical equation that provides the answer to this question is the following: Here, P is the number of ways for N balls in x boxes, in which the occupancy is: n A is the number of balls i...