In this post you'll find "2 truths and a lie" math activities, each with
error analysis questions built right in. Every activity is set up the same
way-- find the error (the "lie") on each card, then correct the error on the
student answer sheet. Students get practice identifying math errors in the
context of different math topics, and then with fixing those errors.
Here is the first card from an
integer operations "2 truths and a lie"
error analysis activity. There are 3 integer operations problems on the
card, along with 3 statements comparing the answers. Students solve the 3
problems then figure out which statement is the "lie". Students then fix the
lie on their answer sheet.
For this
slope "2 truths and a lie", students are presented with a graph, a table and a pair of coordinates,
as well as 3 statements about each representation's slope. Students need
to figure out which of the 3 statements is the lie, then correct that lie
on their answer sheet.
Students identify incorrect statements about zeros, vertex, axis of
symmetry, and/or y-intercept in this
key features of quadratic graphs "2 truths and a lie". All functions in the activity are factorable.
"2 truths and a lie" error analysis activities:
You can see all individual "2 truths and a lie" error analysis math
activities here:
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