The teacher threw a Styrofoam basketball into the outstretched arms of a fifth-grader. Taking the opportunity was the stimulus for the children to underline the missing conventions in a paragraph. The teacher projected a paragraph on the board without punctuation for students to add. The other kids in the class watched as he walked to the board to add the missing comma and then tossed the ball to the teacher. Seconds later, more arms went up in the air to indicate more missing conventions (Stotsky). A simple competitive incentive for the kids made them enjoy learning and actually pushed them to participate in the lesson. Although single-sex classes can develop stereotypes for both sexes, separating boys and girls can be beneficial to students. Single-sex classes are more effective because they raise test scores, create fewer distractions, and make children interested in school. Students are more focused and therefore score better on tests in single-sex classes. Although stereotypes are formed due to the separation of the sexes, a 2009 British Educational Research Journal study concluded that in single-sex classrooms, girls achieve more in math and science while boys achieve more in English (Kwong) . Stereotypes soon developed about what girls and boys are best at. Of course girls are better at English; kids, math and science (compound sentence: elliptical construction). Single-sex classes encourage girls to do more science and maths and boys to do more English because they eliminate gender stereotypes. If a boy and a girl are in the same science class and work together, the girl becomes the scribe to write down the data while the boy does the experiment (Kwong). Math and Science......middle of paper......and Sex Lessons: They Were a Success…” Christian Science Monitor. 31 August 2012: np SIRS Issues Researcher. Network. January 24, 2014.Kwong, Matt. "The gender factor". SIRS researcher. OCLC, September 21, 2013. Web. February 4, 2014. Sax, Leonard. “Single-sex education.” SIRS researcher. OCLC, August 2002. Web. February 4, 2014. “Single-Sex Classrooms.” Message to Ashlee Hoffman. February 7, 2014. Email. “Single-sex classrooms.” Message to Maria Flick. February 5, 2014. Email.Spielhagen, Frances R. “It all depends…”: Middle school teachers evaluate single-sex classrooms.” RMLE Online: Research In Middle Level Education 34.7 (2011): 1-12 ERIC. Web. 4 February 2014. Stotsky, S. “The Promise of Single-Sex Classrooms.” EBSCO Publishing, nd Web, 20 January 2014. Summers, Christopher B. “Md.” Baltimore Sunday March 2013: A.13 Web Problem Researcher. 2014.