In looking for the sequence of skills necessary for ultimate mastery of content I think it is first essential to assess students' prior knowledge. This can be done in a variety of ways such as class warm-ups with open-ended questions or by drawing concept maps to illustrate student knowledge. From this point teachers should focus on finding misconceptions in the student's prior knowledge and have the students find a way to replace the erroneous parts of their knowledge with proper knowledge. This can be done by having students research a topic  or do a project that deals with the misconception so that they can see what they are getting wrong. From here teachers should guide students in the way of learning new information and find a way to organize this knowledge in some way. This is important to help students retrieve this information at a later date. This again can be done through research, projects, or a paper or an efficient grouping of the three. this helps students construct and remember the knowledge the teacher wishes their students to learn. Once a teacher believes that their students have learned what the have planned the only step is to re-assess knowledge in order to ensure students have acquired knowledge in the correct way with little to no misconceptions. 

I was very happy to find this article as it speaks directly to my area and this topic. While it is difficult to plan a lesson with this type of learning in mind, this article points out that constructivism in history classrooms only requires students to put a historical hypotheses together. That is, ask students why America may have made the decision to drop Atomic bombs in Japan. Students would be required to research information on the topic and  create a hypotheses as to why historical figures may have acted in this way. Students can then research and discuss whether they would have made the same decision given the information they have found. This will allow students to learn about WWII through their research of American bombings. This allows the student to personally build their knowledge base.