X
This website uses cookies to ensure you get the best experience on our website. By continuing to use this website, you consent to our use of these cookies.

Grade 7: Math Lesson Sharpens Estimation Skills

Students in David Hill’s math class practiced the art of “almost,” “around,” and “close to” this week with a lesson in estimation.  Estimation is an important component of mathematical reasoning and, on this day, students used rational number operations and their growing computational fluency to quickly arrive at a reasonable answer. 
 
“Efficiency and flexibility matter,” says Dr. Hill, “but we need to aim for accuracy first.”
 
Having fun with the math app, Kahoot!, students assessed a variety of word problems and answer choices to determine the most logical solution within a 60 second time limit. Once the time was up, the app displayed correct and incorrect responses, allowing Dr. Hill to provide further instruction when needed. It was often an exercise in perseverance.
 
“The hardest part of estimation for me is thinking of the possibilities and every part of the question,” shares Chloe Krueger (7). “I feel like I get better when Dr. Hill explains how the numbers connect and I can see what I should consider for the next problem.”
 
When stumped by a word problem, Bryce Dilworth (7) lamented, “This is math. It’s not supposed to be mind tricks!”
 
As students continued to estimate area, perimeter, ratios, costs, percentage, speed and distance, by the end of class they could choose different strategies, verbalize their process and show their growing mastery of how to approximate numbers to arrive at the best answer. 
 
“Word problems are important exercises because they require students to think in real world terms as they compute,” says Dr. Hill. “As adults, we estimate all the time: how much a tank of gas will cost, how much to tip the server at a restaurant. It’s a useful skill.”
 
The lesson gives students the knowledge to make sense of numbers in a broader contextbridges their introductory course units to learning about algebraic expressions, inequalities and proportions; and helps prepare them to study geometry, probability and statistics later in the year. 
 
 
Back

Related Stories

List of 3 news stories.

  • Building Blocks Form Math Foundation

    By Lisa Palmer, ECLC Lead Teacher
    Rhombus? Vertices? Subitizing? These high-level mathematical terms are not typically associated with an early childhood math program. However, studies show that a child’s math skills at kindergarten entry are a better predictor of future academic success than reading skills, social skills or the ability to focus. 
    Read More
  • Grade 7: Math Lesson Sharpens Estimation Skills

    Students in David Hill’s math class practiced the art of “almost,” “around,” and “close to” this week with a lesson in estimation.  Estimation is an important component of mathematical reasoning and, on this day, students used rational number operations and their growing computational fluency to quickly arrive at a reasonable answer. “Efficiency and flexibility matter,” says Dr. Hill, “but we need to aim for accuracy first.”
    Read More
  • Grade 7: Historians Debate War with England

    Are you a Patriot, Loyalist or Neutralist? The answer was relevant this week in history class when seventh graders re-enacted the Second Continental Congress, the meeting in 1776 where American colonists decided to declare their independence from Great Britain. To demonstrate their understanding of the issues surrounding this decision, each student impersonated a delegate with one of three political perspectives. 
    Read More
Archive

Graland Country Day School

55 CLERMONT STREET    DENVER, CO 80220    303.399.0390   
Graland Country Day School is a private school in Denver, Colorado, serving students in preschool, kindergarten, elementary, and middle school. Founded in Denver in 1924, Graland incorporates a rich, experiential learning approach in a traditional classroom setting, emphasizing the development of globally and socially conscious leaders who excel academically.