Foster your fifth graders critical thinking skills and see confidence soar! Children are naturally inquisitive from infancy, yet creative and problem-solving skills need to be nurtured as children grow. Like reading and math skills, critical thinking skills require practice.Foster your fifth graders critical thinking skills and see confidence soar! Children are naturally inquisitive from infancy, yet creative and problem-solving skills need to be nurtured as children grow. Like reading and math skills, critical thinking skills require practice.