Don't suppose anyone knows the strengths and weaknesses of Althusser's Ideological State Apparatus theory? Thought not...
I hate exams.
Louis Althusser's Ideological State Apparatuses
Louis Althusser proposed a materialistic conception of ideology, which made use of a special type of discourse: the lacunar discourse. A number of propositions, which are never untrue, suggest a number of other propositions, which are. In this way, the essence of the lacunar discourse is what is not told (but is suggested).
For example, the statement "All are equal before the law," which is a theoretical groundwork of current legal systems, suggests that all people may be of equal worth or have equal "opportunities". This is not true, for the concept of private property and power over the means of production results in some people being able to own more (much more) than others. This power disparity contradicts the claim that all share both practical worth and future opportunity equally; for example, the rich can afford better legal representation, which practically privileges them before the law.
Althusser also proffered the concept of the Ideological State Apparatus to explain his theory of ideology. His first thesis was "ideology has no history": while individual ideologies have histories, interleaved with the general class struggle of society, the general form of ideology is external to history. His second thesis, "Ideas are material", explains his materialistic attitude, which he illustrates with the "scandalous advice" of Pascal toward unbelievers: "kneel and pray, and then you will believe". For Althusser, beliefs and ideas are the products of social practices, not the reverse. What is ultimately important for Althusser are not the subjective beliefs held in the "minds" of human individuals, but rather the material institutions, rituals, and discourses that produce these beliefs.
Just write that and you'll be fine

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