Created 6/14/20. Updates available 
online.
    
    
  
    
      
    
    Atomic Addition
       
    
    
    
     
    
    
    
    
    
      
        | Title | Atomic Addition | 
      
        
          | Description | Using protons and electrons, students discover the rules for adding integers. | 
      
      
        
          | Subject | Mathematics | 
      
      
        
          | Level | Middle School | 
      
      
        
          | Type | Discussion Prompts, Guided Activity | 
      
      
        
          | Duration | 30 minutes | 
      
      
        | Answers Included | No | 
      
        | Language | English | 
      
        
          | Keywords | integers, negative, positive, sum | 
      
      
        | Simulation(s) | Build an Atom (HTML5), Build an Atom | 
    
    
    
    
    
    
    
    
    
    
    
    
    
    
      
        | Author(s) | Mary Burr | 
      
        | Contact Email | mary.burr2@gmail.com | 
      
        | School / Organization | FSUS | 
      
        | Date submitted | 8/5/15 | 
      
        | Date updated | 8/5/15 |